By and large most oils will work fine in these engines as long as you change it at sensible intervals. The "Use Motorcycle Oil" argument, while not harmful, misses out on one very important fact. Motorcycles use the same oil, except BMW and Big Harleys, to lubricate their gearboxes too. Molecular shear is a common occurrence where oil molecules are scissored or crushed by the gears during operation. Yeah, I know it sounds silly but people with much more experience and knowledge than me say so.
Scooters are almost like cars with separate crankcases and transmissions. Heat is the big issue and a good quality oil changed at sensible intervals is the secret to long life.
1991 Honda Nighthawk 250-16,000 miles 1983 Kawasaki Spectre 750-43,125 miles 2009 CF Moto Fashion- 17,235 miles www.twowheeler.yolasite.com/
I change my oil religiously because of the transmission ,,, but i am taking the advice of a very knowledgable rider and switching to maxxima oils,,it is cheap insurance,,,and a hell of alot less expensive than vespas oils,,,holy smokes $14 per quart,,,,my a$$ is still hurtin,,,ouch,,,funny enough my son rides a ducati monster s4 corsa and he is running maxxima,,,
I used yama lube in mine figured I would go to the local Yamaha shop it cost me 14 dollars per quart also I will not be doing that again I will be stopping at auto zone next time. They gave me 15 or 20 w 50 oil and read its better for hotter weather.
Check out theses test results, Some of the big name high end aftermarket oils (Amsoil, Klotz and Torco) didn't fare as well as OEM Ski Doo XPS2 oil
Anyone with real results with the following oils please post thanks.
Torco spo or sso
Spectro sno syn
I found this info on a Bulletin Board in T.E.S. Racing’s Shop T.E.S. is owned by Tim Sioui who drag races Ski Doo’s on asphalt and specializes in high performance snowmobiles. I believe the info to be accurate and reliable.
This is a comparison of anti-wear properties of popular 2 stroke snowmobile oils. This is an American Society for Testing Materials test that is a lubricant industry standard. This particular test incorporates 500 lbs of pressure on a steel pin and vee block for duration of 3.5 hours. There is a 5-minute break-in period with a 300 pound load. The overall wear is expressed in milligrams of lost metal.