What Synthetic Oil weight to use?
I ahve a '91 5.0l with 150k+ miles on it.
What synthetic oil should I use (never used it before) and what weight?
side note: I need to add about 1 quart of oil every two months or so... is it worth switching to synthetic on this old of an engine especially when it has a non-visible leak/consumption (no white/blue smoke... only black
)?
Thanks
What synthetic oil should I use (never used it before) and what weight?
side note: I need to add about 1 quart of oil every two months or so... is it worth switching to synthetic on this old of an engine especially when it has a non-visible leak/consumption (no white/blue smoke... only black
)?Thanks
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