20w50 oil?
10-19-2004, 11:44 PM
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20w50 oil?
Just wondering what it would do if I ran this oil in my truck. My engine knock is absolutely driving me out of my damn mind and I don't know what to do to get rid of it. Will running a thicker oil help any? I have one of those rare diesel gas 6.0's.....it sounds like a ****** diesel at times from the knocking. Makes me sick... 
10-19-2004, 11:45 PM
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I believe the manual says to NOT use that oil because you risk damage to the engine. Only 5w-30 or 10w-30. Correct me if I'm wrong 
Are you getting that cold start knock?
Are you getting that cold start knock?
10-20-2004, 09:02 AM
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Cold start, warm start....it doesn't matter. I feel that I have a severe case of it. If you hold it at around 1300rpms, its absolutely sickening sounding. I run 10w40 as it is....
The ONLY solution is to take the motor out, and punch it to a 408 or something similiar. Damn GM and their 02 6.0s! Still runs good like always, just makes an aweful racket.
The ONLY solution is to take the motor out, and punch it to a 408 or something similiar. Damn GM and their 02 6.0s! Still runs good like always, just makes an aweful racket.
10-20-2004, 02:13 PM
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Originally Posted by Deckhand
Get your manual and throw it out the window..lol
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10-20-2004, 02:15 PM
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Originally Posted by ACDenali
Cold start, warm start....it doesn't matter. I feel that I have a severe case of it. If you hold it at around 1300rpms, its absolutely sickening sounding. I run 10w40 as it is....
The ONLY solution is to take the motor out, and punch it to a 408 or something similiar. Damn GM and their 02 6.0s! Still runs good like always, just makes an aweful racket.
The ONLY solution is to take the motor out, and punch it to a 408 or something similiar. Damn GM and their 02 6.0s! Still runs good like always, just makes an aweful racket.
10-20-2004, 06:47 PM
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Man I did, I know what ya mean about doin what the manual says but its even louder with the thinner oil. Ive thought about mixing a few quarts of 20/50 with some 5/30. I dunno...then I may just send the motor to Futral. 
