Grunff wrote:

BigWallop wrote:

I've had the same dilemma quite recently and asked a mechanic friend to
explain it to me. The story is that newer engines are set-up not use as
much lead additives than older engines and that older types of engine oil
have high lead content. Because of this, the materials that make up the
rods and piston parts don't take to well to high lead content and can
actually rust more quickly.


That is truly bizarre. Nothing I've ever read about engine oil, and no
lecture I've ever sat through on the subject has ever indicated that
lead was ever used as an oil additive.

Can anyon else confirm this?


On the contrary. Molybdenum yeas, lead? Never heard of it.