motorcycle and car oils

[Robenstein]

Originally Posted By: sunruh
i drink it for breakfast.

right now im testing M1 0w40.


Well given its stout detergent package, I would assume it works well to clean you out. Gotta keep all the sludge out of you. Who needs fiber powder when you got Delvac? LOL

 

[Mik]

Originally Posted By: sunruh
i drink it for breakfast.

right now im testing M1 0w40.


I wouldn't expect any miracles: http://www.bobistheoilguy.com/forums/ubbthreads.php?ubb=showflat&Number=1135748&page=1

 

[fxrider]

VR1 20w50 works good in my Harley

 

[sm00thpapa]

Friction modifiers is the big issue. My friend ran Castrol 5W-30 in his R1 for like 4 years and had no issues at all. No clutch slippage or anything. Me personally will stick with motorcycle and diesel oil in my bike.

 

[Wampahoofus]

Speaking very generally:
Bike oils have additives like zinc, phosphorus, boron in greater quantities. They have a reduced level of friction modifiers, if any, to avoid any wet clutch issues. Perhaps the most important thing is that they contain less VI in order to combat shearing in a shared sump application. Car oils are designed to shear a bit for improved fuel economy. When used in a shared-sump bike they will tend to have the nuts sheared out of them, often by a full grade or more.

Like I said earlier, huge generalizations there. Car/truck oils like Rotella T 15W-40 tend to hold up well in bikes. Rotella T6 5W-40 synthetic, while superior in a car/truck application, shears majorly in shared sumps and is probably not a great idea unless your bike specs an xW-30.

Fire away, internets :-D