Re: improving fuel mileage on a 3.9L
Removing the intake res and putting in the crabs boosted it a bit for me. Stock avg was about 20 with the changes it avgs 21 to 22 now. I tried using the old tornado fuel saver from my grand am but it caused me to throw cels with the intake.
Removing the intake res and putting in the crabs boosted it a bit for me. Stock avg was about 20 with the changes it avgs 21 to 22 now. I tried using the old tornado fuel saver from my grand am but it caused me to throw cels with the intake.
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