Quote:
Originally Posted by Old Tele man
sorta like when they took the lead out of gasoline, then discovered afterward that without the presence of lead, the valves were "sinking" into their head seats because previously the lead-oxide had acted like a "sponge-cushion" to prevent this from happening.
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Strange, then, that so many older cars seem to be able to run just fine on unleaded gas, and some have been doing so for hundreds of thousands of miles. When's this mysterious sinking valve problem supposed to show up?