So the best oil to run is a toss up between Valvoline and Mobile1? I have an 03 DS650 and want to buy oil off the shelf rather than ordering it all the time which viscosity should I go with? I live in Mass so during the year the temp ranges from 0 to 95 degrees I'm looking for an oil I can run all year round. As for the oil DS650 oil filters does anyone know if they carry them in stores or do they need to be ordered online as well?

 

Thats what ATV oil is. The 450cc Race motors where in Motocross bike before they but them in ATVs. Same with the 660 Yamaha and 525 KTM motors.

All the Full synthetic ATV oils are made for wet clutches. Some Automotive Synthetic oils are not but many are,just read the label to be sure.

With Amsoil Synthetic you can even mix it with dinosaur oil.