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#1
06-26-2005, 10:58 PM
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poor gas mileage
hi i have a 92 previ 4wd automatic with 198000 km the car is running strong and smooth,sparks,air filter,gas filter,pcv valve have been replaced but i am havong very poor fuel economy/ 20 liters will do 100km
any suggestions??? thank you. 
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#2
02-26-2007, 01:34 AM
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Re: poor gas mileage
Change your Spark-plug wires(To NGK) and also change plugs with NGK-irridium plugs. I did that and my American 8 cylinder car and gas mileage improved by 40% from 17mpg to 25mpg!
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