As I stated in another oil post I've used Amsoil since 1988 or so in everything from big rigs, to bikes, cars, trucks, and quads with never a problem of any kind......IMO, well worth the money spent..------>> Become a dealer and buy all you want at cost for yourself, thats what I did back in '89...... :thumbsup:
Broke in my raptor 700 with mineral oil (like recommended by mototuneusa.com) and changed over Castrol R4 superbike 5W40, i use this oil on all of my 4-stroke engines (beside the raptor i have 5 lawnequipent motors running).
However i prefer a Yamaha quad, must say that Honda is the superb engine-builer ever, have a 2 cil/22 hp lawnmower, believe me or not, after running 60 hrs with this oil, even the color of the oil (red) had not changed. Never seen that before!!
This oil is perfect for wet-clutch machines like our Raptor's and is very resistant against extreme temperatures.
No need to say that this topic can go on for ever; whenever you are within specs and satisfied with performance be happy
But for me, Castrol :thumbsup:
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