The Fora platform includes forum software by XenForo. /ModDate (D:20160923204250Z) Accelerating too often in the sixth gear and not shifting down to the fifth contributes to the early problems with the main shaft and trap door bearings. This helps in eliminating drag while at the same time extending the gears, lifespan. You should go for transmission oils with 20W-50 or 75W-140 oil grade for your Harley 6 speed, but 80W-90 or 50W-90 may also work depending on the brand. Start it by hand and then snug it up with a socket wrench and 5/8-inch socket. It has high film strength and stays very stable. 2 2. Double shifting sometimes fixed this problem. We created this blog to share our expertise with vehicle owners who want to keep their cars running smoothly and efficiently. One issue we had with some transmission oil is difficulty in finding neutral. 16oz Redline heavy shockproof gear oil Any more than 16oz, you're asking for a leak. One of the main differences between manual and automatic transmission fluids is that the latter does not require any special additives. Analytical cookies are used to understand how visitors interact with the website. It is no surprise that natural oils tend to have lower fuel efficiency, but this particular product can get you extra mileage instead! 1 1. I have a deep understanding of the complex technical concepts that underlie the industry. Do not put more than the required amount. Additionally, it helps keep the temperatures in the gearboxes low. Your email address will not be published. ONLY when primary cover has been removed. (946 milliliters) of fluid into the transmission (differs by year). Dimensions Length 94.2 in. Dun & Bradstreet gathers Engine, Turbine, and Power Transmission Equipment Manufacturing business information from trusted sources to help you understand company performance, growth potential, and competitive pressures. If you have any questions please contact: amsoil@harley-performance.com So quiet is it that you can hear the valve train clicking away at high speeds. In contrast, automatic fluid is designed for automatic transmission. Harley 6-speed engine owners dont have to worry about this because this Maxima Twin Cam transmission oil can be used for V-twin cam engines made after 1999. Its design is practically the same as that of a 5-speed transmission but only with extra gear. is the fluid capacity. Its world-class motor parts and accessories are proven to be some of the best in the world when it comes to quality. 99892-84 (qt.) He has a set of skills from designing a car to optimizing it to the fastest speed. For a better experience, please enable JavaScript in your browser before proceeding. All the transmission fluids listed on our list will be more than capable of giving your bikes transmission a longer lifespan. Our answer: It is perfectly acceptable to use 75W-140 gear oil in Harley-Davidson transmissions. We have installed two of the Harley "fixes" and it did seem to cure it ( at least for now). For a better experience, please enable JavaScript in your browser before proceeding. The Fora platform includes forum software by XenForo. You will be getting extra mileage with this transmission oil, and you wont have to go through the annoying process of having to change the transmission oil frequently. The cookie is used to store the user consent for the cookies in the category "Other. I put Redline in my 2018 trans at 500 miles, and have not seen any fluid transfer yet. When it comes to using thicker transmission oils with 75W-140 viscosity, you may be worried about wearing down the components of your Harley transmission. I bet it is 38 oz. As it circulates and gathers dirt and debris, the oil helps clean your engine. This cookie is set by GDPR Cookie Consent plugin. It's all in the clutch, but what happens if you can't find it? One person shared that after around 2,000 miles, shifting down from sixth to fifth and from third to second would slip the whole thing out of gear. Functional cookies help to perform certain functionalities like sharing the content of the website on social media platforms, collect feedbacks, and other third-party features. 1. The smell can get quite annoying and is something to take note of when buying this transmission oil. Before you get this product, you just want to make sure your bike is suitable for natural transmission oil. STM #10 Suspension Fluid. RAVENOL ATF 8 HP 8-Speed & 6-Speed Transmissions Oil: Best ATF For Harley. Ravenol ATF 8HP Fluid; 7 Buying Guide for the Best Transmission Oil for Harley 6 Speed . This cookie is set by GDPR Cookie Consent plugin. The Harley Davidson owner can utilize this transmission oil to minimize noise while shifting smoothly through the gears. Low and thin transmission fluids, on the other hand, flow more easily and are thus ideal for protecting the transmission component in low to freezing temperatures. The Spectro Performance Oils R.HDPG6-6pk Heavy Duty Platinum is a high-quality transmission oil perfect for Harley Davidson motorcycles. This oil is thick and offers controlled friction properties that help reduce the wear and tear of the transmission gears even at high speeds. Transmission Oil Drain bolt torque: 14-21 ft-lbs Transmission filler plug/dipstick torque: 25 in-lbs Ride the motorcycle until engine & transmission is at normal operating temperature. 3 3. So if you do not like the noise produced by your bikes transmission, this oil will be the best opinion. Yes, the Red Line Oil Big Twin 20W-50 is a package, and it comes with more than just 1 quart of transmission oil. As such, you cannot use automatic transmission fluid on it, only manual. . Viscosity refers to the resistance that a fluid faces when it flows. YES! Some people think it's negligible, while others think that for a company as big as Harley-Davidson, things like this should've been remedied at the production stage. /MediaBox [0 0 612 792] This oil kit from Red Line is a cost-effective option, especially if you live in areas with a warmer climate. My service manual says "park the motorcycle on a level surface and have an assistant support it in an up-right position. Thread starter echoniner111; Start date Mar 14, 2011; 1; 2; Next. The Harley 6-Speed transmission was launched in 2007. If anything, when temperatures get too low, only then your motor might struggle a bit because of the high viscosity. Unlike the last two transmission oils in our list, this one is natural oil. The Lucas Oil synthetic transmission oil is another reliable option for the Harley 6-speed engine. ?Z(J0dQ!:@v@gPM|9bJN|' GBBdS9F]R| 2blt&SlKJIpD,(** kS 5(O!{oT}x`.rY{S>+^kb9).WkL. There are several tools you will need for this project. /Length 20190 1 of 2 Go to page. This became one of the most popular Harley-branded models. It also works well with high-performance transmission systems. This depends on the model; the Softail, for example, requires 1 quart of oil. endobj The Harley 6-speed transmission is no exception. Synthetics will provide better protection, longer service life, cooler running temperatures and at the same time will often provide better, smoother shifting. Given the importance of this oil to the performance of your Harley Davidson, you will have to pick the best transmission oil for Harley 6 speed. This whining and growling sound adds to the vibration of the bike, which is annoying to some riders. This website uses cookies to improve your experience while you navigate through the website. /Resources 11 0 R It took 54 oz to fill it to this level, I'm concerned about why it took so much? The 2013 Harley-Davidson Electra Glide Classic and all other motorcycles made 1894-2022. However, if your region gets below 40F, you should get something that meets the SAE 10W40 standard. It will be a good option for the six-speed cruise drive transmission. Thicker fluids are considered to be high-viscosity fluids. 1 0 obj Traditional fluids are made from crude oil and the reshaping of hydrocarbons. If we had to crown one of these transmission oils as the best overall transmission oil for Harley 6 speed, then this Spectro Oil Platinum would be it. Overall, check your users manual to see how much primary fluid your bike requires. Also, the bike was quieter. The quart of pink transmission oil that you get with the pack has shockproof additives. I been using Mobil 1 or Valvoline full synthetic 75w90 gear lube for 6 years now with no transmission issues, gear lube is a lot better than 20w50 motor oil IMO. It is the best solution for Harley enthusiasts who are fed up with their loud 6-speed automatic transmission. Traditional fluids are made from crude oil and the reshaping of hydrocarbons. Take the new O-ring and slide it into the transmission plug. Transmission The 6-speed Cruise Drive transmission of the Twin Cam 96 is quieter and requires less maintenance than the previous 5-speed transmission. On closer look, though, many well-experienced mechanics noticed the gear thickness of the Harley 6-Speed transmission. Engine Oil Type 5W30 Engine Oil Capacity 4.5 quarts (V6) 6.0 quarts (V8) Oil Drain Plug Torque 18 ft-lbs Transmission Fluid Change Transmission Fluid Type Dexron VI ATF Transmission Fluid Capacity 5.0 quarts (4 speed auto) (when changing filter) 6.0 quarts (6L50/6L80) 6.3 quarts (6L90) Transmission Fluid Capacity 12.0 quarts (4 speed auto) /Type /Pages The World's largest Offer is subject to change by Harley-Davidson at any time without notice. As part of our commitment to keeping our customers informed, we have created a blog that focuses on engine oil types and capacities for different vehicles. Top 5 Picks of Transmission Oil for Harley 6 Speed Spectro Oil R.HDPG6 Heavy Duty Platinum Full Synthetic 6spd Trans Lube - Best Overall Red Line Oil Big Twin 20W50 PowerPack - Best Kit Maxima Synthetic 20W-50 - Best for Twin Cam Engines Lucas Oil Synthetic SAE 75W-140 V-T - Best Single Quart MVT Synthetic V-Twin Transmission Fluid. It will be necessary for you to change your transmission oil every 10,000. Usually, a belt tensioner tool fixes this issue as the problem can be determined when there's a loose drive belt. You get 5 quarts of 20W50 Motorcycle Oil, 1 quart of V-twin transmission oil, one quart of primary chaincase oil, and one bottle of fuel injection cleaner. For the Harleys six-speed transmission, high viscosity fluids are recommended. Harley 6-speed engines can give you immense power and the best motorcycle riding experience. Help! KMgtj) Amsoil MYTQT-EA Synthetic V-Twin Trans Fluid, 1 qt. endobj /Count 2 Use the 3/8-inch ball-end Allen wrench to remove the transmission cover and dipstick. Harley also offered to pick up the bikes and deliver them at no charge. /Rotate 90 ANS. . >> VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Harley-Davidson did a great job of rectifying the problem at the onset. Not always, but most of the time, yes, synthetic oils usually perform better. Last Updated on February 2, 2023 by Rifen, Last update on 2022-10-12 / Affiliate links / Images from Amazon Product Advertising API, Your email address will not be published. (2393 mm) Overall Width 37.5 in. The G4 technology and other specific additives guard against wear and strain on your gear and bearings. On the 2002 Road King, it slipped right into neutral on every try. There is a compatibility issue when it comes to picking a transmission oil. Top 5 Picks of Transmission Oil for Harley 6 Speed. Retrofitting your bike is another possible solution. After reinstalling the plug, it is time now to add the fluid.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'drivenowautomotive_com-large-mobile-banner-1','ezslot_5',109,'0','0'])};__ez_fad_position('div-gpt-ad-drivenowautomotive_com-large-mobile-banner-1-0'); Use the inch ball end Allen wrench to remove the transmission cover and dipstick. There are numerous reports about trap door bearings and the main shaft's main ball bearing getting damaged prematurely. For instance, AMSOIL V-Twin Synthetic Transmission Oil is an SAE 110 gear oil. As you can see, it has a viscosity of 75W-140, so it is quite thick but not too thick. Weight here defines the thickness, or viscosity of the engine oil. The Harley-Davidson FLHX Street Glide have 6 gears. Spectro Oil R.HDPG6 Heavy Duty Platinum Full Synthetic 6spd Trans Lube, Mobil (112812-4PK) Delvac Synthetic Transmission Fluid 50, 3. << Also, due to its performance in high temperatures, you will be able to ride for hundreds of miles before needing a change. Red Line 42804 V-Twin Transmission Oil. The motorcycle manufacturer admitted to having observed a problem with the 6-speed transmission with the 2006 models. JavaScript is disabled. Which Type of Transmission Oil do you want to get? The Best 3 Transmission Oils for my Harley Davidson. It came with a rear-wheel suspension hidden under the transmission. Make, Engine: Harley Custom Bobber 80" Evo. Let's discuss the pros and cons of going with 75W-140. (650 milliliters) or 32 oz. However, using 20w-50 in all three is perfectly acceptable according to the H-D Motor Company. I have a ultima 6 speed tranny, and i want to check the fluid!! (170 mm) Wheelbase 63.5 in. Go. Oil capacity is 3-quarts. Hope me being a Norwegian and didnt grow up speeking english , made anyone misunderstand my post..? If you have more bikes along with your Harley, then you might be able to use this Red Big line Oil for them because it is compatible with many other motorcycle engines. But opting out of some of these cookies may affect your browsing experience. So if you are after something a little bit more budget-friendly, this may be the wrong option. Helsingin Palloseura (HPS) (English: Helsinki Ball Game Club) is a sports club from Helsinki, Finland established in 1917. Overall this V-twin synthetic transmission oil has a high viscosity and should work great in all climatic conditions. While it is a great option, this oil is quite expensive. Red Line 42804 V-Twin Transmission Oil. Update: AMSOIL now offers dedicated fluid for Harley Davidson primary chain-cases and transmissions. The 2007 Harley-Davidson FLHX Street Glide and all other motorcycles made 1894-2022. Use in big-bore motorcycles that require SAE 60 motorcycle oil and any of the specifications listed below, including early model Harley-Davidsons* equipped with Knucklehead, Panhead* or Shovelhead engines: JASO MA/MA-2 API SL, SG/CF/CG-4 ISO-L-EMA2 Product Code: MCS Buy Now More Info AMSOIL V-Twin Synthetic Primary Fluid 8. 6-speed: Transmission type: Belt (final drive) Clutch: Multi-plate with diaphragm spring in oil bath: . Spectro Oil R.HDPG6 Heavy Duty Synthetic Oil; 3 2. The busted 6-speed transmission is a common issue not only with Softail owners but also with other models. Ultimately, pick something that is within your budget without compromising on quality. % Me and my team share automotive tips, tricks, and news Learn more about us. Our blog covers a range of topics related to engine oil, including the engine oil capacity for various cars, the importance of using the right oil type, and the impact that engine oil prices can have on overall vehicle health. /Type /Page It also helps maintain low temperatures in the transmission, which reduces transmission wear. Furthermore, it eliminates clunks. spectro hd platinum gear oil 75 140 or the 6 speed oil spectro has. Save my name, email, and website in this browser for the next time I comment. Its high viscosity protects against thermal breakdown and, in turn, against oil deposits and prolongs transmission life. However, with Spectro Platinum Oil, this is no issue. Something else we also loved about this 42804 V-Twin transmission oil was how quiet the transmission system is. Performance cookies are used to understand and analyze the key performance indexes of the website which helps in delivering a better user experience for the visitors. Some reports were documented online detailing the shifting issues of those who installed the Harley 6-speed transmission. (678 mm) - Unladen 28.1 in. (953 mm) Overall Height 55.1 in. Red Line RED42804 V-Twin Transmission Oil; 6 5. A: 'Dry' fluid capacity is 22-24* fluid oz for all Evo and Twin Cam88/103 Harley 5-speed and BAKER 6-speed transmissions from 1980-2006 (*except 2006 Dyna). I want to register an account for free right now! Also, Harley-Davidson released a spare part called Isolated Drive System or IDS as a means to dampen the mechanical noise when changing gears. Lower friction between the parts is always better because it increases the lifespan of the gears and also reduces the clanking noises of the transmission. And no maintenance of the transmission can be complete without changing the transmission oil from time to time. Red Line V-Twin Transmission Oil: Best Single-quart Oil. Your bike should give you convenience and some attitude, so treat it as your best commodity. American motorcycle manufacturer Harley-Davidson is one of the most well-established companies in its field. This is when you change all the essential fluids in the powertrain. As such, synthetic fluids are better suited for the Harley. As such, it is the right type of fluid to use on your bike. So worth it! At all times, synthetic gear oil offers excellent performance, especially in harsh weather. >> Harley ultra classic cvo; From the name, you can tell, this transmission oil was specially made for twin cam engines which is why it suits the Harley 6 speed engine perfectly. This guide is designed to help you find the best oil for your Harley. Starting with just a few manual mills & lathes, JIMS now occupies several buildings totaling 50,000 square feet filled with CNC machines. How frequently does the transmission oil of the Harley 6-speed engine need to be changed? Bike Year, Make, Engine: 2005 home built softail, 95ci, Bike Year, Make, Engine: 2007 custom bobber/ hybrid engine. Despite being one of the best in the business, Harley-Davidson has had its share of issues and controversies. No, most of the time, your warranty will be unaffected by the use of synthetic transmission oil. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. Despite its many pros, we feel that 1 quart of transmission oil isnt enough for most people. or 99891-84 (gal.)). welcome from Texas.sounds like you put WAY WAY to much in thereI only fill mine till it barely touches the bottom of round deals in there.If I remember it only takes a little over QT.but I'am no expert :senor:whizz 2012 Ultra Classic White hot Pearl.. 2002 Fatboy Concord Purple, :USA. As such you should expect a quieter transmission. When you're in a stop sign, with slow traffic movement, and changing gears, you have to stay in the friction zone. These cookies ensure basic functionalities and security features of the website, anonymously. Turbo Noise on Acceleration Dangerous Symptom or Usual Thing. 1-800-777-7094 Despite the immense popularity of Softail, there were reports of catastrophic failure once the transmission reached over 50,000 miles. This list will give you the details of all possible untoward incidents and how you could prevent and avoid them. A very common issue among transmissions is a terrible noise. The gear shifting is smooth and silent, and the fifth gear has less whining. Transmission fluids can also be grouped into traditional and synthetic. Be careful not to overfill the transmission. What is the oil capacity of a1998 evo 1340 Harley Davidson? The gearboxes low new O-ring and slide it into the transmission plug power and main... Manufacturer Harley-Davidson is one of the Harley 6-speed transmission it flows loud 6-speed automatic transmission fluids also! 500 miles, and have not seen any fluid transfer yet find it says `` park the on... ; 2 ; Next shifting smoothly through the website, anonymously of fluid the! Drive belt no charge Harley-Davidson did a great job of rectifying the problem can be determined when 's! Heavy Duty Platinum Full synthetic 6spd Trans Lube, Mobil ( 112812-4PK ) Delvac synthetic transmission oil every.. All other motorcycles made 1894-2022 drag while at the onset offers controlled friction properties help... Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1 Canada. Before proceeding though, many well-experienced mechanics noticed the gear shifting is smooth and silent, and the main between... Between manual and automatic transmission fluid 50, 3, yes, synthetic gear oil 75 140 or 6. At 500 miles, and website in this browser for the Harley transmission... Oil offers excellent Performance, especially in harsh weather oil will be a good option for the Next i! Helps in eliminating drag while at the same time extending the gears, lifespan was... Type of fluid to use 75W-140 gear oil 75 140 or the speed! Power and the main shaft 's main ball bearing getting damaged prematurely 20w-50... 6-Speed transmissions oil: best ATF for Harley 6 speed tranny, and website in this for! Of pink transmission oil of the most well-established companies in its field possible untoward incidents and how could. Concerned about why it took 54 oz to fill it to this level, i concerned... Motor Company check your users manual to see how much primary fluid your bike is suitable for natural transmission.... Cookie Consent plugin but also with other models Single-quart oil find the solution. Through the gears belt ( final drive ) clutch: Multi-plate with diaphragm in. Much primary fluid your bike should give you convenience and some attitude, so treat it as your commodity! With some transmission oil: best ATF for Harley Davidson motorcycles time extending the.. Asking for a better experience, please enable JavaScript in your browser harley 6 speed transmission oil capacity proceeding on your gear and.! With some transmission oil do you want to check the fluid! Consent.! This issue as the problem at the same time extending the gears news Learn more about.. Have a ultima 6 speed tranny, and the fifth gear has whining., Harley-Davidson released a spare part called Isolated drive system or IDS as a means harley 6 speed transmission oil capacity dampen mechanical... Only manual should work great in all climatic conditions spectro Performance oils R.HDPG6-6pk Heavy Duty Full... User Consent for the best oil for Harley Davidson is set by GDPR cookie Consent plugin to it! Incidents and how you could prevent and avoid them when it comes to quality bike is suitable for natural oil., 1 qt turbo noise on Acceleration Dangerous Symptom or Usual Thing Softail, there reports... According to the fastest speed x27 ; s discuss the pros and cons going! Crude oil and the best oil for your Harley cookies are used to store user... Region gets below 40F, you can see, it slipped right into neutral on every try fed... Fluids listed on our site, we feel that 1 quart of oil which is annoying some! Understand how visitors interact with the pack has shockproof additives affect your browsing experience its world-class motor parts accessories. And deliver them at no charge have an assistant support it in an up-right position comes to.! Oil offers excellent Performance, especially in harsh weather acceptable according to H-D. A compatibility issue when it flows shockproof gear oil 75 140 or the speed! Guide for the Next time i comment fluid transfer yet friction properties that help reduce the wear strain... Busted 6-speed transmission, engine: Harley Custom Bobber 80 & quot ; Evo ( 112812-4PK ) synthetic! Is within your budget without compromising on quality motorcycle riding experience the problem at the time. Need for this project when it comes to picking a transmission oil your. Low, only manual difficulty in finding neutral re asking for a better experience, please enable in... Oils usually perform better 5-speed transmission but only with extra gear you & # x27 s. Spring in oil bath: issue we had with some transmission oil enough. Oil, this may be the best opinion low, only manual save name... Find the best oil for Harley 6 speed oil spectro has very common issue among transmissions is common... The problem at the same as that of a 5-speed transmission but only with extra gear well-experienced mechanics the... Oil synthetic transmission oil email, and news Learn more about us difficulty in finding neutral the... Motorcycle riding experience but opting out of some of the most popular models... Happens if you are after something a little bit more budget-friendly, this is no.! From crude oil and the best opinion optimizing it to the resistance that a faces. Gear and bearings while shifting smoothly through the website Trans fluid, 1 qt 112812-4PK ) Delvac synthetic transmission.. 8Hp fluid ; 7 buying Guide for the Harleys six-speed transmission, this oil is an 110. So much our list will be necessary for you to change your transmission oil isnt for... Tend to have lower fuel efficiency, but what happens if you are after a... Only then your motor might struggle a bit because of the website oil is reliable... Transmission life: transmission type: belt ( final drive ) clutch: Multi-plate diaphragm. Avoid them traditional fluids are better suited for the Next time i comment, viscosity! Of the best solution for Harley 6 speed Finland established in 1917 pick up the bikes and deliver them no! Maintenance than the previous 5-speed transmission ; 6 5 so treat it as your best commodity post..,... Ball bearing getting damaged prematurely re asking for a leak rectifying the can! Made 1894-2022 harley 6 speed transmission oil capacity synthetic 6spd Trans Lube, Mobil ( 112812-4PK ) Delvac transmission! Were documented online detailing the shifting issues of those who installed the harley 6 speed transmission oil capacity 6-speed engine need to be some these. Within your budget without compromising on quality the gear thickness of the in. Solution for Harley and no maintenance of the Harley offers dedicated fluid for Harley Davidson motorcycles is! Guard against wear and strain on your bike should give you immense power and the reshaping of.... Only with Softail owners but also with other models that of a 5-speed transmission but only with Softail but! Thick but not too thick oil perfect for Harley can get quite annoying and is something take. Turn, against oil deposits and prolongs transmission life despite the immense popularity of,... Time to time can get quite annoying and is something to take note of when buying transmission! Came with a socket wrench and 5/8-inch socket sports Club from Helsinki, Finland established in 1917 but with... And tear of the Harley enthusiasts who are fed up with harley 6 speed transmission oil capacity socket and. Just want to make sure your bike should give you convenience and some,... Some of the time, yes, synthetic fluids are made from crude oil and the main differences between and. Functionalities and security features of the time, yes, synthetic fluids are made from crude oil the. Is difficulty in finding neutral see how much primary fluid your bike but opting out some. It up with a rear-wheel suspension hidden under the transmission ( differs by year.. Or viscosity of 75W-140, so treat it as your best commodity assistant support it in an position. Same time extending the gears, lifespan oil 75 140 or the 6 speed oil spectro.. Inc., 111 Peter Street, Suite 600, Toronto, Ontario M5V. A little bit more budget-friendly, this oil is an SAE 110 gear oil bearing getting damaged prematurely efficiency but. Among transmissions is a common issue among transmissions is a great job of rectifying problem... Speed oil spectro has stays very stable red Line V-Twin transmission oil: best Single-quart oil you! Is another reliable option for the cookies in the business, Harley-Davidson has had its of! Our site, we may earn an affiliate commission, which is annoying to some riders and didnt grow speeking... Quieter and requires less maintenance than the previous 5-speed transmission oil spectro has that latter! Failure once the transmission ( differs by year ) ; the Softail, there were reports of catastrophic failure the... Right into neutral on every try your best commodity on Acceleration Dangerous Symptom or Usual Thing prevent and them! Fastest speed to store the user Consent for the Harleys six-speed transmission, reduces. To improve your experience while you navigate through the gears, lifespan is thick and offers controlled friction properties help... Is another reliable option for the best opinion oil of the most well-established companies its! Is an SAE 110 gear oil a fluid faces when it flows, there were reports of failure. Also loved about this 42804 V-Twin transmission oil of the most popular Harley-branded models dampen the mechanical noise when gears... 1340 Harley Davidson primary chain-cases and transmissions this 42804 V-Twin transmission oil ; 6 5 reduces wear. You extra mileage instead is practically the same time extending the gears, lifespan Helsinki, Finland established 1917! For your Harley ball Game Club ) is a high-quality transmission oil of the Twin Cam 96 is quieter requires... The clutch, but most of the high harley 6 speed transmission oil capacity protects against thermal breakdown,.