Improving Fuel Economy for 4×4 Vehicles
When it comes to that thirsty big-block 454 powering your buggy, fuel mileage is of little concern. But on your tow vehicle, mileage means a lot. After all, a loaded 4×4 toting a buggy and trailer can really gulp the fuel. Of course, there’s a slew of parts like magnets and catalysts that “claim” fuel savings, which are dubious at best. Luckily, there are others like tonneau covers and air intakes that not only improve MPG; they’re useful in their own right, too.
Increasing Engine Efficiency
Two of the most exciting fuel savers are air intakes and performance chips. Both maximize engine efficiency, and when used together, real gains can be had. And, since you secretly want these performance parts anyway, purchasing ‘em under the guise of fuel savings makes it easier to sneak by a doubtful spouse.
Exhaust System Gains
The third prong in the fuel-saving trident is a performance exhaust system. By lifting back pressure, performance exhaust let’s your power plant breathe easy to improve MPG. And, when used with the above parts, you get serious horsepower and torque, too. Which of course makes it harder to stay off the throttle and save fuel! If you are blowing black smoke out of the exhaust on your diesel, you need to step up the exhaust and intake to cool down your EGTs (Exhaust Gas Temperatures). That black smoke is your engine wasting unburned fuel.