0W-40 Formula 4-Stroke® PowerSports Synthetic Motor Oil (AFF)
![]() AMSOIL Formula 4-Stroke® PowerSports Synthetic Motor Oil (AFF) 0w40 is specially formulated for four-stroke recreational motors, ATVs and snowmobiles. Reduces wear. Wet clutch compatible. Contains no friction modifiers. Broad viscosity range makes it excellent for use in both hot and cold weather conditions.
Product Code: AFF •
Brand: AMSOIL
Product Details
Tech Data
Reviews & RatingRelated Videos
Product Applications Product Application Specs • API SL/CF, SJ, SH, SG
Product Description
Resists Heat and Thermal Breakdown
Excellent For Transmissions
Superior Wear Protection
Anti-Foam
Special Additives
Compatibility
Service Life HEALTH & SAFETY Click here to view the MSDS Data Sheet for AMSOIL AFF. Keep out of the reach of children. Don't pollute. Return used oil to collection centers.
ATV Maintenance TipsTips to Effectively Winterize Gasoline Powered Vehicles & EquipmentAlso use AMSOIL Gasoline Stabilizer, in addition to fresh Oil & Filter
We use amsoil in everything we own.We use amsoil in our automobiles (cars & trucks), motorcycles, all 3 4-wheelers, 3 snowmobiles. Item Reviewed: 0W-40 Formula 4-Stroke® PowerSports Synthetic Motor Oil (AFF)
Another trusty Amsoil product .I started using this product in my 2003 Polaris 330 Magnum. Item Reviewed: 0W-40 Formula 4-Stroke® PowerSports Synthetic Motor Oil (AFF)
I will purchase this product againWe use it in our 4wheeler YFZ450 with exceptional results, no wear whatsoever. Item Reviewed: 0W-40 Formula 4-Stroke® PowerSports Synthetic Motor Oil (AFF)
No brainerUse in my wheelers and side by side. As well as generator and mower. Makes them run both cooler and quieter. Item Reviewed: 0W-40 Formula 4-Stroke® PowerSports Synthetic Motor Oil (AFF)
The oil for Can-amI'm currently running this in my defenderxt hd10. Works great. Item Reviewed: 0W-40 Formula 4-Stroke® PowerSports Synthetic Motor Oil (AFF)
Thumbs upWorks great having the product shipped to my house Item Reviewed: 0W-40 Formula 4-Stroke® PowerSports Synthetic Motor Oil (AFF)
Hands down the best of the best!I recently switched to Amsoil i use it on everything i have that uses oil and would never use anything without Amsoil name on it!! i just recently purchesedFormula 4-Stroke Power Sports Synthetic Motor Oil Item Reviewed: 0W-40 Formula 4-Stroke® PowerSports Synthetic Motor Oil (AFF)
Great oil for the priceBeen using it since I bought the bike Item Reviewed: 0W-40 Formula 4-Stroke® PowerSports Synthetic Motor Oil (AFF)
Great oil for the priceBeen using it since I bought the bike Item Reviewed: 0W-40 Formula 4-Stroke® PowerSports Synthetic Motor Oil (AFF)
Peace of mindI use this 0-40 oil in my turbo snowmobile. Item Reviewed: 0W-40 Formula 4-Stroke® PowerSports Synthetic Motor Oil (AFF)
Use amsoil for everything!Haven't had any issues with amsoil. Use it for everyday day vehicles to my grease gun. I even use the 75/110 gear oil in bravo 1 out drives on my boat. Each engine dynoed at 650 hp, the drives are rated for roughly 450 hp. Had a guy go through them since I've never done anything with them , he says "keep doing what your doing" I believe in this product and I highly recommend from, boats to vehicles to snowmobiles. Item Reviewed: 0W-40 Formula 4-Stroke® PowerSports Synthetic Motor Oil (AFF)
Superior protectionLost my water pump and didn't realize it until I was overheating. Thanks to this great product I didn't damage my motor. Great oil that provides great protection. Item Reviewed: 0W-40 Formula 4-Stroke® PowerSports Synthetic Motor Oil (AFF)
Great Product!!I have used amsoil for many years and have never been disappointed. Item Reviewed: 0W-40 Formula 4-Stroke® PowerSports Synthetic Motor Oil (AFF)
I would buy this again and againGood for cold start ups in winter and cools motor down in the heat of summer Item Reviewed: 0W-40 Formula 4-Stroke® PowerSports Synthetic Motor Oil (AFF)
I have bought again and again!I use all year round! Item Reviewed: 0W-40 Formula 4-Stroke® PowerSports Synthetic Motor Oil (AFF)
I will use this product onlyMakes our ArticCat 4Wheeler run some, quiet and cool, just like all Amsoil products. This is the only oil we will put in our ATV. Item Reviewed: 0W-40 Formula 4-Stroke® PowerSports Synthetic Motor Oil (AFF)
BEST MOTORCYCLE OILThis is the only know oil that meets the requirements of motorcycles that has the JASO clutch additive and is a 0w-40 viscosity. Providing faster oil pumping at startup and covers a wider temperature range of use in cold weather than the 10w-40 motorcycle oils. Continued customer of this from Amsoil. Thanks greatly. Item Reviewed: 0W-40 Formula 4-Stroke® PowerSports Synthetic Motor Oil (AFF)
Excellent ProductIn the winter, I put this in my 2014 BMW K1600GTL. BMW recommended their 5-40w which is good too, however this Amsoil has a better rating and the lower viscosity allows for quicker pick up and I can actually hear the difference in the followers. In the summer I'll run Amsoil's Metric Motorcycle. Item Reviewed: 0W-40 Formula 4-Stroke® PowerSports Synthetic Motor Oil (AFF)
Why would anyone switch form the world's most Superior?Run this in my son's ATV, and have influenced many many friends to switch to this oil in their ATV's, UTV's, and watercraft. Item Reviewed: 0W-40 Formula 4-Stroke® PowerSports Synthetic Motor Oil (AFF)
I do buy this product again and againI use this oil in all my atv's Item Reviewed: 0W-40 Formula 4-Stroke® PowerSports Synthetic Motor Oil (AFF)
Great year round protection for my Honda!I use this in my 07 Rincon and it shifts better and runs cooler than any other oil I've used prior. Item Reviewed: 0W-40 Formula 4-Stroke® PowerSports Synthetic Motor Oil (AFF)
YesIt what I need. Item Reviewed: 0W-40 Formula 4-Stroke® PowerSports Synthetic Motor Oil (AFF)
Fantastic oil!Great oil. Been using this oil for many years. Run this in the cmax for 15k with their filter, not a drop used! Item Reviewed: 0W-40 Formula 4-Stroke® PowerSports Synthetic Motor Oil (AFF)
Perfect !!Outstanding protection all year round !! Item Reviewed: 0W-40 Formula 4-Stroke® PowerSports Synthetic Motor Oil (AFF)
Excellent oilYamaha apex Item Reviewed: 0W-40 Formula 4-Stroke® PowerSports Synthetic Motor Oil (AFF)
YeaTrx 650 rincon trx 300 easy start cure rincons cold shitfing Item Reviewed: 0W-40 Formula 4-Stroke® PowerSports Synthetic Motor Oil (AFF)
Amsoil is the best.I have amsoil in every motor I own. The formula 4 is great stuff. I have it my 2016 renegade 1000xxc and my Honda rubicon. Item Reviewed: 0W-40 Formula 4-Stroke® PowerSports Synthetic Motor Oil (AFF)
YesBeing using it the mini van for years Item Reviewed: 0W-40 Formula 4-Stroke® PowerSports Synthetic Motor Oil (AFF)
great oilI use this in 2016 BMW 1200RTW starting is great when it gets colder, and the gearbox shifts real nice Item Reviewed: 0W-40 Formula 4-Stroke® PowerSports Synthetic Motor Oil (AFF)
Buy it again and recommend itThis is an awesome product Item Reviewed: 0W-40 Formula 4-Stroke® PowerSports Synthetic Motor Oil (AFF)
Reviewed by Martin Mercier: Produit incroyable et service #1J'ai commandé directement via ce site car après vérification, il m'a été impossible d'en trouver chez les commerçants locaux. Item Reviewed: 0W-40 Formula 4-Stroke® PowerSports Synthetic Motor Oil (AFF)
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Have heard of Amsoil for a very long time. Just prior to this desert season. I bought a 1 year subscription and purchased a bunch of different products for the quads and Rzr. I have been very pleased. My sons quad always overheats and shuts off usually once a trip. Hasnt happened since I have been using Amsoil. I will renew my subscription and use this stuff every season.