unleaded gas & octane

[fred thomas <vafred@erols.com>]

Listers, unleaded gas did not come into being in 1975 as stated, remember 
 Amoco was "White" unleaded gas in regular or premium in the late 1920's. 
Also remember all boats used unleaded in the 1930, & 40's before hardened 
valve seats and such. All marinas carried unleaded way-way back when, and 
these boats were equipped with Packard, Ford & Chevrolet engines. John, 
as for hi-test if you are not racing or have a high comp. engine just 
money wasted for premium.