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I have a '68 cougar with the original 302 in it. It's been taken care of with the original 155K miles on it, but she is getting worn out. There are no leaks, but feel a thicker oil may be better.
Here is my question...What is the best oil to use for an older engine with 155k miles on it?
Here is my question...What is the best oil to use for an older engine with 155k miles on it?