Springtime and oil change calls.
Oh learned mechanics, here is my question.
Putting synthetic in a 60,000 mile engine probably does not make sense.
20W-50 is the norm, but what about something like Slick 50. The engine has
a 54,000 mile history that I don't know. It does mildly leak from the rear
seal (although significantly less since I added some anonymous seal
swelling additive). I don't want to pull the engine until I have to and
would like to delay that as long as possible.
Is there any positive advantage or negative disadvantage to using an
additive like Slick 50?
Bill
'76B
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