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Forum: 68-69 GTO Tempest & LeMans TECH 05-11-2020, 09:42 PM
Replies: 53
Views: 7,845
Posted By north
My oldest aluminized system is about 25 years old...

My oldest aluminized system is about 25 years old and it hasn’t corroded whatsoever. I don’t bother with stainless systems because I don’t like the color and I believe an aluminized system that is...
Forum: 68-69 GTO Tempest & LeMans TECH 05-11-2020, 07:22 AM
Replies: 53
Views: 7,845
Posted By north
I should have been more exact in my comment. The...

I should have been more exact in my comment. The lead additives in gas back then was actually Tetraethyl lead (THL) a compound that prevented the buildup of damaging lead oxides In engines.

To...
Forum: 68-69 GTO Tempest & LeMans TECH 05-11-2020, 12:02 AM
Replies: 53
Views: 7,845
Posted By north
Unleaded gas really extends exhaust life. The...

Unleaded gas really extends exhaust life. The lead in the gas of that era would burn in the combustion chamber and burning lead produces very corrosive acid which accelerated the destruction of the...
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