How to make my 1991 Pontiac Grand Prix more fuel efficient?

  • Thread starter Thread starter johnsteinborndo
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johnsteinborndo

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I am just wondering if their is any tweaks i can specifically make for that model of the grand prix. I get about 16 to the mile at best in town and i am by no mean a lead foot. I was thinking of replacing the air filters, but is their anything else i could to to the stock engine that would make it run more smoothly and save me money at the pump? Thanks!
 
plugs, plug wires, air filter, fuel filter. Check and make sure tires are properly inflated. Run mid grade fuel. Good luck and God Bless.
 
I manufacture a new exhaust device that really improves efficiency. I have one on a 91 Sunbird, man does it make it scream, and mileage. If you can keep your foot out of it, it improves your mileage in a very large way. I do guaranty a minimum of 10%. The one I tested we tested for power, wow what torque, but the speedo doesnt work so seeing mileage was out, but my girlfriend who drives this car noticed that she doesnt have to gas up near as often.
 
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