Let me do my once a month chime in here. I checked my
mpg last week and I'm getting 19.64 hwy! Also up 1 mpg
with the Autolite 3923's and thats averaging 65-70 mph,
stock ignition, gapped .040 .I could hardly believe it
since the plugs are really a basic looking plug with a
different heat range. Combined with a Sam's membership,
the gas prices aren't hurting to bad. 3 words......
Thanks Jon Smith!
GS -
'98 5.2L 5spd
>
> I put in the autolite 3923 plugs Day befor yesterday and by the overhead readout shows the mpg is up by 1 to 3 mpg and the 4.7L idels smother. With 2300 miles on the '00 QC Dak and running nice:) I see what you mean about NO anti-sezi stuff in the old plugs! Thanks folks for the tip.
>
> Don Mallett
> Ft Worth TX
> geocities.com/maldbnsf
>
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