increase gas mileage
I have a 1997 Chevy conversion van with a 5.7 liter V-8 engine that burns gas like crazy. How can I improve the gas mileage?
Buy a new vehicle. Sorry but you are driving a freight train and asking for better gas mileage. The only thing you can do is remove as much weight as possible and hope for a few more miles. Digging into your wallet to get a cold air intake and redo the exhaust will increase the gas mileage but you will have to wait about two years to get the money spent in parts and labor back from the mileage saving.
always go the speed limit.
driving style also helps, easy on the accelerator, (let the truck start to move itself) before you apply gas, tires inflated properly, and not speed..stay 60 or under, over 60 wastes fuel.