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08-14-2010, 08:40 PM | #1 |
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Oil recommendation
First of all, I realize that this question is asked many times during the year and I am sure that has been answered as many, but here goes...........
What is the recommended weight, detergent or non-detergent, and brand of oil recommended for a 81A Flathead V8? I've always been a Pennzoil man, but need your advice. Thanking you in advance................................... |
08-14-2010, 09:06 PM | #2 |
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Re: Oil recommendation
Most will say any 15w40 . 30wt will do just fine above 30 or 40 Deg. 10w30 will lube almost anything also. If it's old and worn with lots of sludge in it use a non detergent. Like an old boat mechanic told me one time anything but water, and nothing,
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08-16-2010, 08:45 PM | #3 |
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Re: Oil recommendation
Bbt
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08-16-2010, 08:49 PM | #4 |
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Re: Oil recommendation
I run 20w50 (with zinc and etc in it.) in my 50. It's got quite a few miles on it. My Merc always had 40 wt with STP. It's pretty darn hot here most of the time and not really very cold in the winter. Hugh
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08-16-2010, 08:52 PM | #5 |
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Re: Oil recommendation
I use KENDALL 15W 40 It has a lot of (ZINC) in it compared to other brands. It has worked for me for years. Good luck!
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08-16-2010, 09:17 PM | #6 |
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Re: Oil recommendation
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08-16-2010, 09:31 PM | #7 |
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Re: Oil recommendation
Frank What is Gibbs? Gibbs Racing? I would like to read the info. Thanks
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08-16-2010, 09:41 PM | #8 |
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Re: Oil recommendation
Yup, If you go to the HAMB, hehehe, go look at the alliance vendor list, on that list is gibbs, Joe Gibbs racing developed this oil, it's really impressive stuff, has plenty of ZDDP for solid lifter cams, but it is a synthetic type oil so you have to read all that the site offers, I guess there is a thing called additive clash that can really mess up an engine. It's not cheap but good stuff never is. At the very least I learned a lot about oil.
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08-16-2010, 09:46 PM | #9 |
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Re: Oil recommendation
Thanks I'll check it out.
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08-16-2010, 11:24 PM | #10 |
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Re: Oil recommendation
I go with the 20w /50 brad penn oil.It has more than enough zinc and made in the u.s.a.But alot depends on your block,old or rebuild? Then their is the whole synthetic causes leaks argument.Oil is a really tough and opinionated topic.Joe gibbs oil is also ans excellent product.Research is the key.
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08-17-2010, 04:56 PM | #11 |
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Re: Oil recommendation
I am using Castrol 20/50 in my 1932 Ford Lincoln V12 powered engine.
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08-17-2010, 05:45 PM | #12 |
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Re: Oil recommendation
I use 30 detergent in my rebuilt flathead.
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08-17-2010, 10:48 PM | #13 |
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Re: Oil recommendation
10/40, 20/50, 15/40 - all good. Name brands like Castrol, Rotella T. Detergent
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