I think you guys have this going on the right track.... Good thread..
I agree on all of the tuneup items...
Spark plugs( if they haven't been done in a while )
Plug wires ( Same as above )
Air Filter ( our engines need and want to inhale )
Fuel system formula ( $8-$10 a bottle, keeps injectors happy )
Correctly functioning T-Stat( 180F-195F ) A stuck open thermostat will kill MPG'*
Replacement AC Delco O2 ( if you have 50,000-60,000 miles on the current one )
Delco ignition upgrade ( fire a bit hotter )
Good exahust flow( as in a non clogged converter )
I feel all of these things will contribute to fuel effiency.... Good Luck..
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