Product Reviewed: 20W-50 Synthetic V-Twin Motorcycle Oil (MCV)
Current Rating: 4.9 out of 5 stars
Votes & Reviews: 445 vote(s) and 496 user reviews.
Reviewed by James: 
Runs good haven't noticed any oil use
Reviewed by Doug:
great
Reviewed by Jason:
Harley oil has nothing on this full syn. Best choice for any v-twin, nothing but good experience with Harley motors.
Reviewed by Dennis:
I service my bikes every 5000 miles and have never had an issue. Great product
Reviewed by Romano:
I use these products both mine and my wife's 2015 Harley Davidson Road Glides. I've used them for many years with great success. Love Amsoil products.
Reviewed by PETE:
A soul, is good for my transmission, engine,and primary!
Reviewed by Lawrence:
Best oil there is for my Victory Kingpin. Motor runs cooler with this oil.
Reviewed by Chris:
I have HD FXST & Buell X1 started running your 20/50 synthetic V-twin motorcycle oil this season.. Right way you could tell the bikes were happy! Out on the road they are running about ten degrees cooler then with conventional.. Plus being on the preferred customer program I had my order within four days which was awesome!
Reviewed by Ron:
Use it on my Harley Davidson Touring Bike
The engine seems to run smoother and quitter.
Reviewed by Aron:
i have use this oil in my Harley for 10 years , excellent oil
Reviewed by Robert:
great oil
Reviewed by Robb:
Great product!
Reviewed by Dale:
Fantastic oil for my Indian Roadmaster. Smooth clutch operation
Reviewed by Jason:
The best oil on the market for V-twins.
Reviewed by Eric:
Great product with a great added value. Nothing but the best for my bike
Reviewed by dirt_devil:
Best v-twin oil i have ever used
Reviewed by Eldon:
Love it. Keeps engine running way cooler and quieter
Reviewed by Bigdog:
Best oil on the market
Reviewed by Smikes362:
I use this in my Harley Davidson wide glide 05. Use in all three hole. Great oil. And doesn't use any oil.
Reviewed by Mike W.:
I use this in all 7 of my bikes.
Reviewed by JT:
I recently joined the AMSOIL family after talking with several other people over the years about their experiences. I am extremely satisfied with the product and immediately noticed smoother shifting and idle. I was however disappointed in the design of the one gallon jugs. Most manufacturers have realized the benefit of a easy pour design and have incorporated it into their large capacity containers. That is one feature that I miss...
Reviewed by Mike:
First time using this oil dropped my bikes oil temp 10° Highly recommended.
Reviewed by Twin Cam 96:
Goes in my Twin Cam 96 Harley. I've been putting it in all three holes. Works well.
Reviewed by Sam:
Great for my motorcycle
Reviewed by Ruder:
I ride motorcycles and have all ways used this product
Reviewed by Missy:
I use this in Both my Harley Davidsons
Reviewed by Roger:
I have been using Amsoil 20/50 synthetic engine oil in all my bikes since 2003 and I prefer to use no other product than this. This oil Meets all my driving needs during the winter and the hot summers I have never found this out to fail. I am 100% satisfied and will continue using Amsoil 20/50 synthetic. Also whenever I order from Amsoil my order comes within a few days.
Reviewed by Superglide99:
I use this in my Harley and it seems to do a good job.
Reviewed by Bubba:
Great product have used this product for 10years. Will continue to do so.
Reviewed by Jim:
When you spend the coin for a Harley Davidson motorcycle why wouldn't you use the best products in it? Amsoil for life!
Reviewed by Dave:
Amsoll is the life blood of my Harley. Air & Oil are the 2 cooling agents that keep a Harley running. AMSoil does it better, the bike runs quieter, and I have confidence that my girl will keep on going even in these HOT Florida days.
Reviewed by JC:
Outstanding product and runs great in my M8 engine.
Reviewed by G:
This is the best oil I have found around. The price is comparable to other brands but they don't do the same job. My engine runs cooler and for a Harley that is air cooled that's important and for my bike being 27 years old it needs the best.
Reviewed by Tommy:
Best in the business.
Reviewed by Big B:
Very clean oil great for all temps of riding
Reviewed by Hemi:
Amsoil is the best
Reviewed by Harry:
Hands down best oil. My bikes run cooler and even going longer between changes, it doesn't seem to break down.
Reviewed by Wet willy:
Great products
Reviewed by Joe C:
The 20w-50 synthetic V-twin motorcycle oil makes the shifting of the transmission smoother than stock oil, and shifting into neutral is the best ever with Amsoil. Also engine oil pressure when hot maintains constant oil pressure
Reviewed by Grizz:
It's got what it takes for heat and clang reduction.
Reviewed by Crazyman:
I use this in my Harley. At 64K miles, I'm obviously sold on it. I also use Amsoil 10W-40 synthetic in my Gold Wing.
Reviewed by Devon:
After reading many oil surveys, Amsoil was the most popular among Harley owners old and new. I have used Amsoil in my cars and trucks for a while now, so it was a natural choice. The difference on start up is instantly noticeable with a big reduction in mechanical clatter.
Reviewed by Big Papa:
I have used Amsoil VTwin for 10years. I have a 2012 ElctraGlide with 165k miles and have never been into the engine. I reccomend Ansoil to everyone I speak to about oil.
Reviewed by Rob:
Use Amsoil in everything I own except airplane. Both Harley's use this and associated tranny and primary.
Reviewed by ftonyf:
I ride sometimes in the city at 0 to plus 5 cel.oil flows like summer time
Reviewed by Zero:
Keeps my Electa Glide running cool. 90,000 miles with no mechanical issues.
Reviewed by Royce:
I have used this oil on my Harley's for years and never once have I had a engine or bearing failure due to lack of lubrication!
Reviewed by G:
Ones a year. Super convenient!
Reviewed by Willy:
Amsoil continues to perform as advertised.
Reviewed by Dino:
Best syn oil on the market, been using it for years. I've seen first hand on this oil how it saves engine life.
Reviewed by Bugman:
My Harley road king classic seems to run quieter and a little stronger too.
Reviewed by calbrown:
I have a 1995 Heritage Softail Classic and always had problems finding neutral when coming to a stop. I added Amsoil 20w-50 full synthetic to the primary and this problem went away. A friend had the same problem with his 2014 Ultra Classic Limited so I suggested this to him and it also took care of his issue.
Reviewed by N/A:
I had 2002 HD Ultra Classic with a stage IV upgrade, this bike made great power but didn't care for slow moving hot temperature days. After switching from Harley Davidson's "Synthetic" offering the bike ran a consistent 20 degrees Celsius cooler on any given day and the oil didn't get nearly as black as the HD oil; especially when riding in extreme temperatures
Reviewed by M8:
I have been running this product for years, The protection it gives my engine is 2nd to none
Reviewed by Dakota boy:
Run it in my Harley that I ride hard !
Reviewed by BSMC:
wouldn't use anything else hands down the beat u can get
Reviewed by Ed:
use Amsoil in two different Harley Davidson motorcycles and had good luck with it
Reviewed by Gilbert:
The best product I ever used
Reviewed by Roadglide ryan:
Can tell noticable temperature reduction in my 110 Harley davidson motor.
Reviewed by Fxdls:
I have a Harley low rider s with the 110ci and I run the v twin oil in my engine, the primary oil in the primary. And the severe gear 75 90 in my tranny. Runs like a dream, only complaint is the tranny fluid is next to impossible to see on the dip stick so it's hard to tell the fluid level when filling. Wish it had a dye in it or something
Reviewed by DONALD:
I've run Amsoil for as long as I have rode Harley's and this is my third one. Not one minutes trouble and I have rode in some of hot weather it was so hot a friends bike shut down and mine never skipped a beat. Now my friend runs Amsoil as well
Reviewed by Rebel:
I use it in my bike best oil ever. Best for tranny and primary products love it.
Reviewed by Ole timer:
Use it in both my 02 Ultra and 05 Heritage knowing its going to keep them lubricated and running through the long haul.
Reviewed by Bear:
Always used oil from Harley Davidson until my friend told me about Amsoil, so when my wife Nancy and I went to Bikefest in Las vegas, we got a membership with Amsoil, we save money and get the best product on the market, we not only service our 2 harleys, but we will service our 2 cars, and the people at Amsoil are very happy to help you with what ever products you need. We are members of Amsoil for life. Bear
Reviewed by Haywire:
Amsoil 20W-50 Synthetic V-Twin Motorcycle Oil is the only oil I have used in my last 2 bikes a 2006 UC and a 2014 RK. Never had any problems and will continue to use this oil as long as pricing remains competitive. Really believe that it is a superior product.
Reviewed by HD:
i have a '98 Ultra Classic that was getting harder to shift. I changed out the clutch plates with a set of Barnett HP plates. I also changed the primary oil out to the Amsoil 60w synthetic. Wow what a difference. It has never shifted so well even when new. I also changed the engine oil to the same 60w.
Contrary to beliefs, it is not to heavy during the Virginia cold winters.
Reviewed by Dan:
I switched to Amsoil's 20w-40 V-Twin formula a couple thousand miles ago in my '17 Indian Springfield, with the Thunderstroke 111ci. Right out of the gate I could feel a positive change in my bike....I could now find neutral easily! Other than that, time will tell. But just from that it shows my the internals are running smoothly. Also, some are scared to run "Full Synthetic" in their bikes, fearing clutch slippage. It's in both my wife's Chief and my Springfield. No slippage! There are no friction modifiers in this, so it's good to go for wet clutches. I will continue to use it.
Reviewed by Steve:
I've been using AMSOIL products in my motorcycles for the lastest 20 years and could not be happier when doing motor work and seeing how good the products work.
Reviewed by Double D:
I use Amsoil in my motorcycle and car. I believe in the product completely and I know my vehicle's engine just runs better.
Reviewed by Dummy:
Best oil and protection on the market 1ST in synthetics for a reason dont run anything else!!!!
Reviewed by Boxer:
Use Amsoil in motorcycle & truck. Excellent products
Reviewed by Seekanddestroy:
Great oils great service
Reviewed by Sam:
I buy all three types oil, engine, transmission, and primary.
Reviewed by Thunder:
Works well and I like it is rated higher than OEM product.
Reviewed by Sasquatch:
I'm a new user to Amsoil, but using it in a Tahoe, Harley, and an Indian Scout.
Reviewed by Charlie:
I've been using Amsoil since 1993 in my Harley's. This is the only oil that I know that helps cool the motor. Amsoil has never failed me and I will always use this oil, and only this oil my in HD motor, tranny & primary.
Reviewed by Madness Motorcycle LLc:
I've been using and selling AmsOil synthetic motorcycle oil products since I opened my business nearly 15 years ago. AmsOil products have provided the best all-around protection for my various personal motorcycles. Therefore it makes it a no-brainer to recommend and offer AmsOil products to all of my customers.
Reviewed by Dorsey:
Did an oil change on my harley Davidson bike runs much smoother than the regular harley stuff they use definitely an awesome product
Reviewed by Ultra103Ski:
This is the ONLY oil I trust in my bike. I've tried other oils that don't deliver, including all versions of OEM oil. After countless hours in parade mode, AMSOIL quieted the motor & drivetrain better than OEM. I run 10k miles on AMSOIL w/very little noticeable wear on any component, which is evident by less steel debris caught by the oil plug magnets, compared to what I did see running OEM.
Reviewed by Todd:
2016 street glide with tire shredder kit in the motor. Amsoil ran 15 degrees cooler the royal purple. Have a ultra oil cooler with fans and oil filter that's reusable and supposedly lowers temperature by 5 degrees. Save your money and get the oil bud. No fan draw and it's hidden. I put the oil bud on and AMSOIL ran 15 degrees cooler than royal purple.
Reviewed by Indian mike:
Best on the market
Reviewed by Mike:
Noticeable reduction in oil temp.
Reviewed by Gomez:
I use this on both of our Harley's. I really like the combo kit with filter too. Primary oil and transmission fluid are great too.
Reviewed by 16 Limited:
Use this oil in my ultra limited, it runs quieter and cooler.
Reviewed by Frenchbernie:
Best oil I found to use in my Triumph Rocket 3 2012. Cleared up noisy shifting 90% , & doubled oil change interval. So it comes out 1/2 the price of other oils.
Reviewed by R.:
I use 20-50 motorcycle oil in my Y2K Heritage engine.
When I changed from petroleum based engine oil to Amsoil I had to slow down the idle speed.
I believe Amsoil does a superior job lubricating the engine.
I ride year round in temps from 32 degrees F to 102 degrees F.
I don't believe engine oil should be used in primary chain case or transmission. Engines, transmissions, and primary chain case all have different lubrication requirements. Select the right lubrication for the application.
Reviewed by Grinder:
I use amsoil in my Harleys to protect the engines and drivetrains. As a benefit the engines run a lot cooler.
Reviewed by Copper rock{t:
Amsoil provides Full protection for those hot days while riding the HD air cooled twin.
Reviewed by BUd:
I changed the engine oil on my Harley an the engine runs 20 to 40 degrees cooler than with the stock Harley
Reviewed by Mike:
I use Amsoil in EVERYTHING!
Reviewed by ny jeff:
I use this amsoil in my harley for the life of my bike and I now have 135k in mileage with no major repairs and my bike still runs great. Thank you Amsoil
Reviewed by Rob:
I am supposed to use 20-40 but I find the 20-50 makes a big diff in how the bike sounds and shifts. Been using Amsoil for years.
Nothing else will do.
Reviewed by Mike:
I regularly run AMSOIL 20w50 and sae60 in my Harley's. I also run an oil pressure gauge as well as an oil temperature gauge and AMSOIL is the most consistent I've ive come across.
Reviewed by vic:
Every time I use anything Amsoil I notice an improvement in motor function in every way.. truck, bike, boat chainsaw; if you know your motor you'll know the difference Amsoil makes.. You CAN feel it!!!
Reviewed by Harley CVO:
Great product for Harley's
Reviewed by Tombstone N8:
I only run Ams oil in my bike.
Reviewed by mike:
love Amsoil, started using it in my Harley and could not get over the gain in power and fuel mileage. Now I have it in 2 trucks,my car, lawnmower,tiller, and logsplitter.
Reviewed by Rodzooka:
I've ran this oil in 2 identically set up Harley Davidson Twin Cam engines. First one Amsoil was added after my factory warranty was up at 40,000 miles. By the time it had 75,000 on it,it was using a quart every 2500 miles. The other engine has had Amsoil 20w 50 in it since new. It currently has 128,000 miles on it and is now using 1 quart every 5,000 miles,plus the heads have never been removed! I truly believe that it is superior to everything on the market.
Reviewed by Jon:
Change over from HD oil, better quality and price. Got about 2000 miles oil still looks new.
Canada
United States
I will buy again
Use this in my new street glide special runs cool and quite