302 mileage...
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The K&N filter material allows increased airflow which increases power. They are wonderful products that I highly recommend for performance, but not increased mpg. Any mpg increase would be negligible. The drop-in filter will just increase air flow over the restrictive, traditional paper filter. The complete air intake kits have pre-engineered/larger/smoother components that increase airflow as well as a larger filtering area.
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My 88 4x4 302 did 12 mpg city, highway, mountains, climbing trees, in 4x4, WOT or grampa style... etc. etc. didn't seem to matter what I did. The only time it did better was on a trip to SC where believe it or not it did 20 mpg from Whytheville VA, into Greenville, SC (all down hill of course. Sorry to be the bearer of bad news.
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C'mon PiperC...does your fuel tank have some holes in it?
Even my 1968 F-100 with a 4 barrel carb. and 390 got 8-9 MPG.
FYI My 94 302 4x4 was getting about 13 around town and 15 on the road...and I changed the plugs and wires annually along with the fuel filter. I don't think I could have asked for much more out of that truck in terms of fuel economy.
Even my 1968 F-100 with a 4 barrel carb. and 390 got 8-9 MPG.
FYI My 94 302 4x4 was getting about 13 around town and 15 on the road...and I changed the plugs and wires annually along with the fuel filter. I don't think I could have asked for much more out of that truck in terms of fuel economy.
Last edited by AWH; 11-10-2004 at 10:25 PM.
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This is what happens when you put an okay car motor in a pickup then you slap all the emmissions crap on it. My 302 in my 88 didn't really start making power until 4K rpm. Saddly I am seeing the same trend with my 4.6 but at least if the power is gonna be down a little I get a little mileage in return. I miss my 5.3 GMC when gettng up those on-ramps in tight spaces.