On (22 Nov 96) Wes Leatherock wrote to Bill Clark...
 BC> Time to get into this fray in terms of old eras (right echo... eh?
 BC> )! Back in the 50's and 60's "high test" not only meant higher
 BC> octane but also more cleaning ingredients and upper cylinder
 BC> lubricants (lead among others) blended into the gasoline.
 WL>          Tetraethyl lead was not added to the gasoline to serve
 WL> as an upper cylinder lubricant.  It was added because it raises
 WL> the effective octane level of the gasoline at less cost than
 WL> creating higher octane fractions from the crude oil.  The
 WL> lubrication was a side effect.
No argument here... But... back in those days, there were other additives
in "high test" which offered benefits in addition to higher octane.
-bc-
bclark@rochgte.fidonet.org
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