Are there parts/modifications you can install/do to your car to increase gas mileage?

M

Magic J!

New member
I know about how to increase gas mileage for the most part but aren't there parts you can install and change out that can drastically increase mileage.

I've got a 1997 Jeep Grand Cherokee..

I don't want to know anything too expensive or out of the top...

Thanks for any knowledge you can provide.
 
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