I run 20/50 summer time or 70 grade winter time casrtol 4 stroke motorcycle oil in my raptor 660. I use bosch 3300 filters. The oil is a $1.50 a quart,,,,,,the filters are $5.00. I change my oil when ever it looks dirty and loses that gold color. I buy my oil at Wal-Mart and my filters at autozone. I have been using castrol in atv's and street bikes for years. Everyone in my family uses the same type oil in their atv's and street bikes for about twenty years with no reported mechanical engine problems ever. Just your normal wear that come with putting mile on a engine. I believe yamaha tries to push their oil extremely to hard. It is to expensive in my book. I change my oil more than the average guy I believe and I save money doing it.
this is just my opinion

raptor 660,,,,,few mods

 

I basically do the same except I have ran many oils in the past....always synthetics, except for break in. When I have had to tear mine down I have never even had a ring groove on my cylinder.

 

I run Yamalube but the 4 stroke oil is like 9 bucks a quart at my local dealership. What are you guys paying? I think that's a little out of hand.

 

they want 5.50 a quart at my local dealership for yamaha lube.

 

yamaha lube is good oil, it don't break down like some stuff. but for the price it's over rated in my book. I d rahter change my oil more often and pay less for it that change it some times and spend a fortune.

I noticed where i live there is a guy selling amsoil out of his home. I hear allot about that oil form every one on this forum. esp the guys from california,,i wonder how good it is

 

Shady.....what are you paying for an oil change? $50?

 

4 quarts of amsoil full synthetic and a filter ran me 48 bucks., i only need 2.60 quarts.

 

Yamalube with 10% Lucas additive....

 

Yeah it's murder with 4 quads, 3 of them 4 stroke. I need to find good oil and buy it by the gallon. Thinking about that Amsoil.

 

Amsoil by the barrel.........