Unleaded gas, additives and valve seats

[JHertzman@domain.elided]

Guy Benveniste is concerned about the effect of unleaded fuel on a carbureted 
1972 GT Veloce 2000, and wonders if some kind of fuel additive might be 
helpful; Lawrence Leong suggests investigating hardened valve seats.

Totally unnecessary. The car has the same valve seats as later unleaded-only 
cars. His Owner's Manual says to use a minimum of 87 octane fuel (P.O.N., the 
number posted by law on USA station pumps, equivalent to 91 octane R.O.N.). 
Unless he has a non-stock higher compression engine, that is sufficient; any 
good brand of gas should be fine without additional additives.

John H.
Raleigh, N.C.

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End of alfa-digest V7 #968
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