Posted by jimg.allentown on November 12, 2013 at 16:58:54 from (98.115.105.174):
In Reply to: Lead additive in fuel posted by mss3020 on November 12, 2013 at 13:04:51:
I have been a "heavy metal" mechanic for over 40 years. I remember well how engines were "back in the day" when leaded gas was the norm. On average, I saw 3 valve jobs per week and usually one brought in on the hook with a rod through the side of the block. Upon teardown, the engine usually contained several pockets of a light gray and sticky mess of goop in the oil pan. cylinder heads, and around the lifter valley on V-8s. By the late 1980s, valve jobs were more like once every six months I might see one. Engines simply did not throw rods nearly as often. What was the big difference??? LEAD in FUEL!!! IMHO the best thing that ever happened to engines was the removal of lead from the fuel.
As a side note, I have a 1954 Packard Cavalier that I have run on unleaded regular for over 5 years. Still the original valves and seats.
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