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Old 04-27-2005, 04:51 PM   #1
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what do the difference between the RTV colors?

I am replaceing my oil pan gasket, and I want to use some RTV on the front and back so it wont leak again. All I have is black RTV. but when I took the old gasket off, it had orange RTV on it. Would black work? what is the difference?
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Old 04-27-2005, 05:41 PM   #2
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Re: what do the difference between the RTV colors?

black will work fine

in general, black/blue is engine oil resistant, grey is gear oil resistant, orange/red is higher temp, copper is highest temp, not all RTV is made equal though, so read the package for the qualities of the enclosed product
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Old 04-27-2005, 05:54 PM   #3
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Re: what do the difference between the RTV colors?

Originally Posted by Dave89IROC
black will work fine
Never mind
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Old 05-01-2005, 03:41 AM   #4
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Re: what do the difference between the RTV colors?

the grey is the best the black turns to rubber and will failmsooner . i work for a chevy dealershep and that is mostly what we use . been down that block before . gm dealership gray the new kind they switched due to failure of the other or lioght grey permatex is the best ive seen as far as longevity.
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Old 05-01-2005, 04:35 AM   #5
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Re: what do the difference between the RTV colors?

Blue is sensor safe

You should be fine with the Ultra Black.. Its always worked for me on oil pans and such..
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Old 05-01-2005, 04:35 AM
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