whats the difference? Does it really matter which you use?

 

**** that i would never use car oil in my bike, it dont have the same protection for your clutch etc.... advanced auto has some cheap **** that aint bad lucas oil semi synthetic for motorcycles 5.99 a qaurt

 

car oil has teflon added to it, which doesnt work well on clutch plates.

 

+1 narrden

 

royal purple all i run

 

01 f4i 32k on the speedo been stunted for the last 4 years castrol 20w50 still runs like a champ!

 

none biker u should know

 

your bike is a wet clutch car oil will **** your **** up man you will be eating clutches like crazy there is also way different additives in CAR oil vs BIKE oil. pay the extra money and dont be cheap get actual motorcyle oil

 

i ran 5/30 bulk oil in my bike for 5 years with zero problems .

 

I've run everything from super tech, mobile clean 5000, and rotella in ALL my bikes

40k miles on my f4i's stock clutch, currently running super tech 10-40!

**** what they say, improper clutch use burns clutches up! Not the oil.
Some oils might make an already failing clutch slip more, but a perfectly good clutch shouldn't slip on regular old dino car oil.

Now some synthetic car oils have been said to make clutches slip, so when dealing with synthetics, you ened to be a little more carful.

But just because I was bored, and because I can, I ran a oil that specifically people state will make your clutch slip, I ran it 2-3k miles in my f4i. That was about 10k miles ago.
Now I'm back to super tech, still not slipping.

 

+1

but that **** is WAY to thick for a f4i.. HAve you ever watched how long it takes to build oil pressure? Or do you not run gauges?

Just running 15-40 rotella in my bike, would DOUBLE The time it takes to build pressure..
And when I drop my bike, and it flips up onto the tank, regular 10-40 can take me 20-40 seconsd to build pressure, with 15-40, it was sometimes 30-90 seconds to get pressure!

I've had my oil pan off 4 times, and my oil pump out 3 times, everything is in spec, I don't get what the deal is.

You might be fine with what you run, but honestly, that sounds way to thick at cold start. Might not be bad if you ONLY start your bike when its above like 60f, but I definitely wouldn't run that thick of oil every below 60f..
Hell I'd still be nervous anytime the bike is cool. But I do a lot of riding down to 20f, so I run a mix of 5-30 and 10-30 in the winter

 

IMO the most important thing is changing your oil often, especially if you mainly stunt your bike ,and especially if you ride the clutch a lot!

Bike oil gets bad fast, it gets clutch particles in it which then are flowing through your bearings.. You want good, fresh, clean oil in there as often as possible.

If your bike is strictly a lot bike, and most its life is in 1st gear, I'd change the oil every 500-1000 miles max..

I go 500-1500 on my bike, oil changes cost $13 ($2.50 super tech oil filter).. My bikes about 1/3 life stunting 2/3 street

 

dbl post

 

+1.....put 43,000 on my F3....all it ever saw was Castrol.


This debate makes me laugh every time I see it!

 

some car oils have an ''energy saving seal'' and that oil has additives that can make clutches slip but car oil that doesnt have the energy saving seal shouldnt be a problem ..

as far as the 20/50 being too thick thats not an issue where i am in south florida

 

Na I live in Texas its always hot! Every time i start it oil pressure is instant. Its the moly in the oil thats bad for clutches but there has been studies that prove that car oil has very little more than standard motorcycle oil. Maitnance is key!

 

+1 Whatever happened to listening to the old guys?

 

yea, I run std RotellaT w/a super tekkk filter in my shitbox. Cheap and tough

 

dont skimp on your engine...give it something good, every time i have put car oil in my bike it made my clutch slip...once in my warrior and it was damn near new, so i dont wanna hear about how your clutch was already going out... there is obviously a dif between the two and its not just in price

 

nice try guy. Thought I did know but found out some guys i ride with use car oil, did research found its ok. apparently alot of the guys here do to. sooooooo i guess your the none biker?