Quote:
Originally Posted by mswehx
I only run motor oil(synthetic valv.) in my 97 hx trans. and have done since I bought Feb 97 and still no problems 5w-20 and always use seafoam 453,400 and counting. I clean my egr every 100k and have only replaced the primary 02(header)once .Still going strong.
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By valve you mean valvoline right? Also 453k miles holy crap lol, 50mpg on a car with so many miles is awesome haha.