So my local Yamaha dealer told me for my oil change that I needed to run 20w50...

So my local Yamaha dealer told me for my oil change that I needed to run 20w50 non synthetic any name brad I preferred in my Wolverine thoughts ideas? Sounds a little thick to me

  • Thanks. I knew something didn't sound right when he said 20 w50 any brand

  • I run rotella. It's wet clutch approved


    AMSOIL Formula 4-Stroke Power Sports Synthetic Motor Oil is recommended for four-stroke engines. It is also recommended for transmissions in two- or four-stroke applications. It is an all-climate/all-season oil that replaces 0W-30, 0W-40, 5W-30, 10W-30 and 10W-40 oils for ATVs, UTVs, snowmobiles and other powersports equipment. Also recommended as a replacement for Polaris Synthetic PS-4 Plus and Arctic Cat Synthetic ACX. Manufacturers include Polaris®, Honda®, Yamaha®, Ski-Doo®, Can-Am® (Bombardier®), Suzuki®, Kawasaki® and Arctic Cat®.




  • I'd like to be able to use my warranty if every needed and I'm sure if they found out you run anything but what they recommend they wouldn't warntey it out

  • That they wont. I work for a Yamaha dealer an if you service it yourself an don't have receipts to prove you bought it from an authorized dealer with other parts that are suppose to be changed like the crush washers an gaskets. They will not cover it an void warranty.

  • Brandon what's the crush washer

  • It's an aluminum washer on the back side of the oil plug

  • And you have to replace that every oip change?

  • I guess some dealers are different I have not used yamalube since I have owned my Viking and they covered my cracked crankcase under extended warranty

  • yamalube only