Car oil vs motorcycle oil

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Jan 6, 2009 | 08:13 AM

SIXR

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From: West Coast

Car oil vs motorcycle oil

Does anyone use car oil in their Harley? I know that mc oil is required in metrics because of the wet clutch, but can car oil be used in dry clutch applications?

Jan 6, 2009 | 08:21 AM

dope_man_21

Ultimate HDF Member

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From: Carrollton, Georgia

Here we go again......

Not this xxxx again

Jan 6, 2009 | 08:25 AM

JW1200

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From: Land of the Free, Home of Jack Daniel's

NO. Not in a Harley. The MC oil I use is formulated for air cooled engines.

Jan 6, 2009 | 08:30 AM

Ultra110

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Joined: May 2008

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From: New Hampster!

Some will say Yes some will say No there is no real 'proof' either way. Spend what you can afford and feel comfortable with. Use the search there has to be no less than 500 posts about this topic

Jan 6, 2009 | 08:38 AM

SIXR

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From: West Coast

Thanks.

Quote:

Originally Posted by dope_man_21

Here we go again......

Not this xxxx again

Way to help a guy out, jerk. But what should I expect from a dope man.

Jan 6, 2009 | 08:45 AM

dope_man_21

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From: Carrollton, Georgia

Quote:

Originally Posted by SIXR

Thanks.

Way to help a guy out, jerk. But what should I expect from a dope man.

Maybe an a$$ whoppin

Jan 6, 2009 | 09:01 AM

Sefferdog

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From: Ocala, FL

You are going to get a thousand responses on each side of the fence on this one. I use Mobil 1 15W50 for cars. It comes in a 5 quart jug from Walmart for about 25 bucks. I have used it since my first oil change on my 07 Ultra. I also use it in the primary. I now have 25,000 miles on it and no problems whatsoever. It is really what you are most comfortable with as ether one will work just fine.

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Jan 6, 2009 | 09:09 AM

FXSTDSE2

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Joined: May 2008

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From: South Jersey

Here is the skinny, The HD motors are built loose in tolerances because of air cooling and expand more than liquid cooled motors and have more blow-by that trashes the oil so you, by standards, should use a specified V twin oil. The twin cam is the tightest motor HD made (other than the V rod) and doesn't trash the oil AS FAST so people are running regular oil with little adverse affects. It's your bike, run what you want.