Saturn s-series cars are notorious for oil consumption issues due to a design issue with the pistons. A simple modification of drilling drainback holes in th…
Drilling pistons to resolve oil consumption and oil burning issues – Saturn and others, S-Series
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It does, but there are cons to this as well. Wreaking of the piston groove for one. Still for what most owners use them for, this really helps the consumption issues.
Does this procedure really work?