[Chrysler300] Ping

[Gary Barker <gbarker@xxxxxxxxxxxx>]

I remember back , away back when I was in aircraft school when we were 
working on airplane engines ( Mostly Hemi's) we were given a basic class 
on fuels.  I do remember we were working on a B-25 bomber that was 
converted to a executive plane for Union Big Shots.  It used 110 octane 
fuel.   We were taught that the reason they put tetra ethyl  lead in the 
gas was to slow down the burning rate and make in smooth and 
constant.    Regular fuel with low lead exploded in very uneven 
explosions  Regular was actually more powerful than the higher octane 
fuels.  Detonation  caused the piston to get kicked all over the 
place.   During  WW11 , some of the Fighters and Bombers used water 
injection for short bursts of power.  It did  almost the same thing  as 
lead except it carried its own oxygen  which gave more power and also 
cooled the cylinders at the same time.  It was very hard on the pistons 
and cyl. heads.
 Now to mileage.  I worked at a foreign car dealer for several years in 
the early 70's.  I had a customer who had kept fuel mileage of his car 
on every tank for 72,000 miles.    He would use regular for awhile then 
switch back to leaded.  He always got 1.5 to 1.6 more MPG with leaded 
than when he used regular.  I found that very interesting.    Just some 
thought food.  Gary Barker


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