No, not the usual Synthetic versus Petroleum question... I use full sythetic and change the oil and filter every 1500 miles.

This one has to do with the thickness of the oil. I live in Atlanta, GA. I rarely ride when it is less than 50 degrees(f) outside. The standard oil for this bike is 10W-40. Now, I am reading here and there in magazines about switching to a different weight oil in order to pick up a couple HP.

Does this actually work? Would going to 15W-50 or something add a HP or two? Being that I never ride in the truly cold, is that a factor?

My next oil and filter change, I was going to go from Motul 300V to Royal Purple, and was wondering if while I am at it, if I should switch to a different weight.

Thoughts?

 

I have never heard of a thicker oil (the number being bigger) making more horse. If anything, I figure it would be the other way around. I recommend stay with the factory recommend lube. No need to change, and no hp gain either way.

 

pssss...scary enough...they ran race oil in a gixxer...and it got more HP...not SOTP but RWHP on a dyno!

 

Well, I have read that sort of stuff and that was why I was asking. I meant to say a lighter oil, not thincker though.

I read several reviews where they took an engine mounted on a crankshaft dyno, and ran consecutive dyno runs changing the oil and filter each time, and in a pretty well controlled environment, they had a 15HP spread between various oils.

I read a review in a motorcycle mag a couple years ago where they did something similar, and one or two oils yielded a 2-3hp gain over others. IIRC, an R1 gained HP just by using a better oil...

If anyone can locate that article, I would love a copy!

 

no need to change the oil every 1500 miles, even 3000 miles is a bit early..

 

yea mang...quit polluting the environment at an acclerated rate! a normal rate is fine...every 4-5K...
i mean...you're polluting like 3x per everyone's 1! you evil mang!

 

It is recomended you change your oil every 2500 if running your bike hard. I change mine at 2500 even though I run amsoil full synthetic. Anytime you have an engine that has a wet clutch sooner the better.

 

where you get your information from? i gots test results from blackstone that say otherwise. around 2800 is when the oil starts to break down for dino oil. this was on a bike that was run REALLY hard.