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Originally Posted by wnl25
Anyone out there have any working solutions with aftermarket parts that actually improved gas mileage on 98 ranger with 4.0L?
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the air hogg and the k-n air filters are less restrictive, for giving better air flow to the engine for increasing power and fuel mileage... also, advancing the the engine base timing more than stock timing specs, just to the point of where your engine won't ping, will increase your power, acceleration, and gas mileage, substantially, more than you can imagine, just for doing something so simple...