best synthetic oil?

[JParisi48]

whats the best synthetic oil for a kfx450r running in 30 to 100 degree weather?

[ccdhowell]

Red Line Racing 40wt.

[steve181]

Dont Use Synthetic

[JParisi48]

why not?

[oilguy]

Synthetics will lower your temps, specially on those hot temps. plus your engine will like you a little more



this stuff
https://www.amsoil.com/StoreFront/images/tdr_qt_300pxh.jpg

[ohsobad_chevy]

Amsoil

/Thread

[kd450r]

I personally have had great success with schaeffers. I started using it about 6 months ago and it has been awesome.

[RobRacing]

I used mobil 1 in my 450R. It may not be good to use it if you don't have a split motor.

[rooster300ex]

Originally posted by oilguy
Synthetics will lower your temps, specially on those hot temps. plus your engine will like you a little more



this stuff
https://www.amsoil.com/StoreFront/images/tdr_qt_300pxh.jpg

thats 2stroke oil. kfx450r is a 4 stroke. amsoil is a good oil though.