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1990 4Runner V6 w/ 205,000 miles. Should I switch to synthetic oil?
#12
I have read that switching to synthetic on an older engine may lead to leaks that were not apparent before. The synthetic oil may find it's way through some worn seals and gaskets that the dino oil may not have. Of course I don't know that to be true, first hand.
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Re: 1990 4Runner V6 w/ 205,000 miles. Should I switch to synthetic oil? - by mikebw - 01-23-2009, 01:43 PM

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