I can not tell on my bikes. They have oil coolers with 215 degree thermostats in them. So they run 215 no matter what oil.

A cooler engine will run stronger and last longer than an engine relying on any brand of oil.

 

I may not always agree with lh4x4, he speaks straight up here on this subject. After all, it's only air and oil that keeps these babies running cool.

 

And enough fuel.

 

Well **** it would have to do mroe than lower the temps for me to want to shell out that much for it

 

I am not pay 16.00 a quart. There are as good and better out there.

 

hahahaha if your paying 16 bucks a qt bro, the internet is your new bff because i get mine for 11 a qt.

 

Nah i started using rp on my quad its all raced out because after rebuilding the motor a couple times because of bearings going bad and finding corrosion i asked my homie that competes and he said rp was the way to go.
Since i started using royal purple we bored it out and while having it apart it was crazy how clean everything was.

 

I'm using RP and I get it for 9 bucks quart. It' the only blood I'll ever use in any of my autos and bikes.

 

I use RP in my diesel, I don't pay $16, with 12qts, I'd never want to change the oil, lol. I've been using Syn 3 in my bike, but will probably change to RP or give Amsoil a try on my next service.

 

I don't use it. That's the price in the DK catalog for a qt of 20w-50.