Do you think this is good oil to run in my new Raptor 350, its 10w 40

 

Yes that is pretty good cost efficient stuff. [img]i/expressions/face-icon-small-cool.gif[/img]

 

Amsoil is proven to be better then spectro in independent lab testing, but its probably more costly. im running 10w40 right now do to the cold weather, ill swithc to 20w50 in summer.

 

i was doing research on oil a while back,and the results were shocking!amsoil,mobil 1, on top.motorcycle oils were tested and the spectro came out below regular castrol 10/40 !just thought i would let you know because of the price difference.most so-called motorcycle oils are no better than car oils.some are better against thermal breakdown.just use good car oil and change every 3 or 4rides and you will be fine.my 2 stroke gets new oil every 2 good rides-good insurance,oil is cheap gears are not!also on the 2-strokers ,my experiance has been to stay away from synthetics(clutch slippage). got a roll-over to prove it !hope this helped[img]i/expressions/face-icon-small-happy.gif[/img]

 

Where did you find these results? Im interested now because ive used spectro on numerous occasions and it’s been fine; furthermore most motorcycle/ATV repair shops around here sell the stuff and say its fine. Curious…

 

Ahhh I found it - Yes Spectro and Honda HP4 did come out on the bottom but they were compared to 2 types of Synthetic oils & a Castrol regular motor oil. What seems to be interesting is that the Regular motor oil Castrol GTX outperformed the motorcycle oils (not by a huge margin). All regular petroleum based oils were with in 4% of each other though so the bottom end for Spectro & Honda isn’t on the deep end. Now the question comes down to using Castrol GTX as your ATV oil!? Hmmmm.... Very curious [img]i/expressions/face-icon-small-confused.gif[/img]?

Link: http://www.xs11.com/stories/mcnoil94.htm

 

The reason for that is that in a motorcycle you can't use friction modifiers like in a car. Automobile oil has all sorts of additives to make it flow better, reduce wear, cling ti metal better, etc. A motorcycle can't use those do to the wet clutch, those modifiers would make the clutch slip.

 

Yeah well thats the obvious results that we have all been told for a long time but still that leaves a question mark in my head as far as viscosity results go and how well our motorycle oil is performing... F*CK it I havnt had a problem ever with it.

 

dude just go throw in some amsoil, you'll be amazed how good it looks when it comes out. Amsoil full synthetic, the only true 100percent synthetic.

 

Hmmm... I will look into it. How much does it run?