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 Thierry Waldmann: 
Amsoil très impeccable bonne oeuvres d'huile.mon moteur Fat-Boy beaucoup plus silencieux maintenant !!!
C'est tourne bien comme horloge Suisse...C'est impressonnante 100% score !
Grand-merci à Amsoil...
Waldmann Thierry en Alsace (France)
Reviewed by Alex:
Great product
Reviewed by Slawomir:
My Harley love it
Reviewed by Fernand:
very good product
Reviewed by Allen:
Big motorcycle engines produce a LOT of heat, and Amsoil oil helps reduce that heat as well as standing up to the heat and provides engine protection in the most adverse conditions.
Reviewed by John:
I used this oil in my street glide and the engine seemed to run quieter.
Reviewed by Floyd:
Best oil you can put in your Harley, hands down!
Reviewed by Paul:
Works fine in our motorcycles.
Reviewed by Dean:
First time using Amsoil in my Road King. Trying it in all three holes as suggested. So far so good. Finding neutral much easier now. I'll let you know what it looks and feels like after the next change.
Reviewed by Chris:
I have used this oil in my Indian Roadmaster for all but the first 500 miles. After 30,000 trouble free miles, I wouldn't use anything else!
Reviewed by JACK:
Using it on my 2014 Slim and 2008 X bones since after their first oil change
Actually use AMSoil specific lubes in all three holes
Bikes run cool, quiet and shift like butter.
Neutral is always there and I never see metal deposit anywhere
Both bikes have similar milage and just finally got around to opening the primary on them to check chain tension and was blown away that either bike didn't. No explanation for that, sorry. Best part while in there was seeng the nylon shoe on the chain tensioner was barely worn
Hope to get another 40k mi out of them
Love AMSoil lubes
Reviewed by Kevin:
The only oil for my Harley!
Reviewed by Lionel:
I operate my 1961 harley Davinsion duo glide also known as a pan head , I use it in the motor and four speed transmission ,having driven it eight thousand miles and only adding three quarts to top it up as the primary and secondary chains are lubricated by the engine oil and then allowed to drip out .I keep an eye on the quality of the oil by checking it with my lubricheck oil tester .
Reviewed by Louis:
Best oil money can buy.
Reviewed by Thomas:
2009 Dyna Street Bob,
2010 Road King
Reviewed by Curtis:
I run it in the transmission of my 2014 street glide.. if shifts easier and quicker
Reviewed by Mark:
I have over 149,000Km (92,500miles) on my 2015 H-D FLHXS and have always used Amsoil!
Reviewed by Shawn:
Works great I noticed a huge difference in how easy my bike shifts now and I noticed the engine does run a little cooler now, definitely gonna keep buying Amsoil now
Reviewed by Steven:
Been using it for 10 years and now have a few friends using it also.
Reviewed by Maximo:
After my trip to sturgis 5000 engine started to make noise
Reviewed by James:
i LOVE THE PRODUCT BUT PRICE IS STILL THE PROBLEM
THANKS jJPK
Reviewed by Trellis:
I used amsoil in my 2011 Street glide. This is my first oil change since u got this bike so not sure what was in it when I got it. I used amsoil in engine,primary and tranny. The biggest noticable difference is in the tranny. I can really tell the tranny shifts a lot smoother. Love amsoil!!
Reviewed by Greg:
Use it in my Turbo Charged Harley street glide . Never have any issues even with the extra turbo heat.
Reviewed by Steve:
Have used this oil consistently on my 2003 Vstar with 50000 miles on it. Best you can do for a motor is use the best oil you can afford and change it regularly. Amsoil fits the bill. Thanks for a fine product
Reviewed by Michael:
I use in all my bikes
Reviewed by Raul:
Great stuff!!!
Reviewed by Randall:
Amsoil is a superior product. I used 20w50 it in my motorcycle for years and just sold it with 55,000 miles on it with no repairs. I changed it every 4,000 miles and it was as clean upon draining it as the day I put it in. The engine oil also lubricated my wet clutch with no problems or failures. Great product.
Reviewed by Ruben:
I discovered and have been using Amsoil oil over 15 years, this particular oil that I'm reviewing is going in my 2015 Victory Cross Country, and was previously used and my Yamaha Roadliner, also previously used in my Honda Rebel, my Honda Shadow Aero, in my Yamaha VLX.
I run full synthetic in all, I can physically feel a difference in the smoothness of the motor. I can also operate longer between oil changes.
I run AMSOIL in ALL my 4 & 2 wheel vehicles.
Reviewed by Ronald:
Started using Amsoil in the late 70s, Mostly 15/40 diesel marine used it in my cars trucks boat and motorcycles and over 30 years in my honda lawnmower ( still using the mower) also used the gear oil and 100-1 two stroke oil .I think my old husky chainsaw called for 16-1people told me that stuff is to thin or it will leak oil or you will void your warranty!I never needed to use a warranty nothing ever wore out.Any machanics that have serviced my equipment comment that thing is like new inside.I only use other oils when I don't have Amsoil.
Reviewed by Victoria:
Helps reduce ware temps
Reviewed by Dale:
I used in my 2001
Called Harley asked them about amsoil for my new bike
Was told if I don't use Harley oil
My warranty will be void
Reviewed by Douglas:
Been using on 2015 RG since new. 20k plus and no issues!
Reviewed by Hing:
Did the oil change on my bike.
Reviewed by Chris:
Best oil out there.
Reviewed by Bill:
Oil change time before I ride my Harley to Daytona for the Fall Rally. Everything went smoothly and now my scooter is ready!
Reviewed by Steven:
Great product! I have complete confidence in Amsoil to protect my bike to the fullest.
Reviewed by Giuseppe:
I like it maybe a 20/60 for hotter running harleys
Reviewed by Richard:
Good
Reviewed by Keneth:
My dyna loves this motor oil keeps it running smoothly
Reviewed by Terry:
Run the Vulcan on different types of oil but this is all my baby will see from now on
Reviewed by Gerald:
Been using amsoil for years can't go wrong!
Reviewed by Daniel:
Swapped this oil into my 2019 Harley Ultra Limited for the 1k service. So far, I feel this oil quiets the engine down and makes it run smoother. I did not run this oil in all three holes since there are mixed reviews on if engine oil should be used in the primary and transmission.
Reviewed by Tom:
Love it great product
Reviewed by Gary:
I have all my Harleys on Amsoil along with my Diesel.
Good product!
Reviewed by Edward:
I've been using this oil in my Harley for years and love it... I would trust my bike to any other oil on the market not even the over priced factory synthetic !!!
Reviewed by Paul:
Use with my H-D Ultra Classic. 50K miles of worry-free riding when I use AMSOIL products in my motorcycle's engine, transmission, and primary gear. Thank you!
Reviewed by Patrick:
I love your products I use the 20w50 in my Harley for the transmission and primary pulse the engine it works great where ever it is placed. The bike seems to run a little cooler than with other oil
Reviewed by Cecil:
Using this oil lowers my oil temp by several degrees.
Reviewed by Timothy:
I love the lubrication of the oil.
Reviewed by Stephen:
Many years ago, I read an
article in Motorcycle Consumer News (similar to Consumer Reports), a magazine that does not have sponsors and is free to say what they think, that ALL full synthetic motor oil is superior to dino oil in motorcycles, particularly the air cooled ones. I've been using AMSOIL products in my cars, truck and motorcycles for decades and I've never been let down. My Harley Sportster 883 is supposed to run upwards to 240 degrees F in hot weather, especially at interstate speeds. On the hottest days the temperature gauge in my oil tank never goes over 205 degrees and on secondary roads, averages about 195 degrees.
I don't have any other oil to compare this to but on the Harley internet forums, this particular oil is the top choice. I don't plan on switching just so I can compare products. I'm sticking with this oil because , "if it ain't broke, don't fix it".
The Sportster uses this same oil in the separate (dry sump) oil tank for the wet clutch and works perfectly. The Big Twins use a heavier gear oil and
AMSOIL is still a top choice on the forums.
Reviewed by Geni:
Great price, very convenient having it delivered right to my door for free!
Reviewed by Rusty:
Nothing but the best for my baby's!
Reviewed by Tino:
Use this in a couple Harley's when doing the oil changes. First off there was a noticeable change in engine tone. Engine runs smooth. Also put it in the primary and no problems. An interesting thing found is how clear the oils is still after 3k on one and 5k on the other. The "manufacturer" brand oils seems to get darker well before that. I also want to point out that even after long long rides to and from the oil level hasn't even dropped! No one drop still at full. Been riding around with a extra qt for nothing. Will continue to use from now on. So far very please with this oil. Would recommend.
Reviewed by Dan:
I use this product in 2003 Dyna Lowrider exclusively. Since the switch from the factory synthetic, I have noted less upper valve train noise and smoother and quieter shifts. This oil does everything I need it to do for my bike, and I have switched all of my engines and machinery around the house to Amsoil products as well.
Reviewed by TOM:
Used for my Harley, won't use anything else.
Reviewed by Ronald:
The best oil I have ever used in my numerous Harley Davidsons I have taken a number of long haul trips from desert heat to the Rockies doesn't break down like conventional oils do
I only use Amzoil in all my
vehicles
Reviewed by Jim:
Best oil in the world. The only thing I trust in my motors
Reviewed by Howard:
I use this product in my 2004 Heritage Classic with 67000 miles. The temperature always stays at about 200 degrees, well below the operating temp of 230 degrees.
Reviewed by John:
Are use this in my motorcycle, it runs cooler and quieter. the bike has 95,000 miles on it and it's running just as good as the day I got it.
Reviewed by Fred:
Been using to service twins for years
Reviewed by Ed:
2016 HD Road King
Reviewed by Tim:
Literally the best oil I've tried and I've stress tested this on numerous occasions. Over 2000 miles in 115+ degree heat riding for over 20 hours in a day. Best in the biz for sure
Reviewed by Robert:
It's the only motor oil I put in my Harley
Reviewed by Normand:
Easy to order fast and reasonable shipping
A fantastic product that I've been using for the past 13 years in my Harley
Reviewed by Al:
Use this in all my Harley Davidsons. Best engine protection hands down. Any doubts, read the white sheets
Reviewed by Bruce:
Wouldn't use anything else in my motorcycle
Reviewed by Jay:
Been using this oil for 10 years, for this price and quality HD can't do beat your product.
Reviewed by Preston:
Love it always use it in my 2006 f150
Reviewed by Keith:
I use it in my motorcycle, I have been using it for the last fourteen year and had no problems
Reviewed by Allen:
👍
Reviewed by Michael:
My Harley Road King loves that stuff. By far the best motorcycle V-Twin lubricant period.
Reviewed by Dale:
Always 100% great products. I wouldn't run anything else.
Reviewed by Austin:
Bike loves it
Reviewed by Paul:
Runs smother and quieter
Reviewed by Jeffrey:
Believe it or not, my Ultra Classic Electra Glide runs cooler with this amazing lubricant in it. It also produced 1 hp and 1 ft lb of torque after switching to Amsoil. Amazing stuff!
Reviewed by Steven:
I have used 16 years. best oil out there
Reviewed by Steven:
Great oil my m-8 107 runs cooler in this hot weather
Reviewed by Cameron:
Night and day difference from the H.D stuff that was in my engine
Reviewed by Craig:
Used 20W-50 Synthetic V-Twin Motorcycle Oil In my HD 883R Sportster works great to keep engine running smooth and cool.
Reviewed by Stephen:
Love the oil will always use it
Reviewed by James:
Switched all three of my Harley's over to Amsoil Bikes are running great also cooler great product
Reviewed by Karl:
Better protection than Syn-1 from Harley.
Reviewed by Alex:
Used for a 2014 Victory Cross Country and 2014 Victory High Ball.
Reviewed by Gordon:
On my Harley
Reviewed by Terry:
Best oil for my 2015 Tri Glide.
Reviewed by Randall:
Always use in my Harley
Reviewed by STEPHEN:
best oil out there
Reviewed by Dana:
This is the best oil you can put in your motorcycle by far.
Reviewed by Harry:
First time oil change with Amsoil at 5,000 miles. Gained over tenths of a mile per gal.
Reviewed by Ercel:
When I bought my first Harley I ask the salesman what he recommended and he said amsoil. He is a old school biker so that's what I use in it. I also have a oil cooled 114 motor and I believe it keeps it a little cooler her in texas
Reviewed by Christopher:
Great oil for my 2011 Harley road king
Reviewed by Armand:
I've used Amsoil in both my Harley's for the past combined 91,000 miles....great lubracant.. use 20/50, primary and tranny
Reviewed by Mario:
I like the oil, it makes my engine run cooler.
Reviewed by David:
Keeps internal wear to a minimum
Reviewed by Craig:
Good product
Reviewed by Joe:
Keeps my 2017 Harley Davidson Ultra running cool in this hot Florida weather. I have used it for many years and on many different motorcycles. Great product.
Reviewed by Daniel:
Started using Amsoil motorcycle oil about 8 years ago and just think it's the best oil made today, my Harley's love it. I used to use a different oil and think it still works, but i know this oil does the job better.
Reviewed by Danny:
I use this in all of my Harley's. It is the best of the best
Reviewed by Soul Poncho:
I use it in all parts of my Harley IE engine trans & primary & have been using this product since 2007 & never had a problem with anything that this oil protected. My machine is a 1988 FLHC my local independent bike shop tells me that I have the best running bike of all the older bikes that he services . Tried to get me to use other oil that was a no no no
Canada
United States
Reviewed by Mr.007:
"06 Electraglide
When I first took on my 2006 Electraglide ultra classic that had 14,000 miles on it of course had Harley oil in it . The machine was an oil drinking demon that was making the oil producers wealthy . After doing some research and speaking with people I settled on Amsoil 20/50 Vtwin synthetic . Once I did the changeover to Amsoil I was stunned at the results , no more oil consumption , lower engine noise and considerably noticeable heat coming from engine. Amsoil is the winner in my bike!!