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Old 06-05-2017, 07:05 AM   #13
special-K
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Join Date: Nov 2004
Location: Mt Airy, MD
Posts: 85,863
Re: TH350 / NP205 - ATF or 80w-90?

They only seem to fail when they lose too much "whatever". As long as they have adequate "whatever" they are fine. The synthetic 80w90, I use Royal Purple, has a much thinner consistency similar to ATF
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