Expert Tips To Increase Fuel Economy While Towing Heavy Loads

Evander Long
July 16, 2026

Fluctuating oil prices force us to find ways to increase fuel economy during both daily commutes and heavy hauls. Gas costs drop unexpectedly one week and spike the next. Owners hauling heavy campers and enclosed race trailers watch their mileage plummet straight into single digits. Losing miles per gallon forces us to spend extra cash just to reach our destinations. Here’s some tips from Hot Shot’s Secret to help increase our car’s fuel economy.

Increase Fuel Economy Tips (2)

Maintenance To Increase Fuel Economy

Fresh engine oil and clean gear fluids prevent mechanical drag inside the drivetrain. Keeping a tow rig operating at peak potential requires regular maintenance intervals. Adding a specialized friction reducer like Hot Shot’s Secret FR3 into the block smooths out microscopic metal imperfections. Two-time Roadkill Nights Champion and National Hot Rod Assoc. (NHRA)-licensed driver Morgan Evans noted: “That added lubricity can also improve fuel economy by up to 5% just from the engine performance alone.” Afterward, mechanics throw in a clean air filter and properly inflate tires to prevent additional rolling resistance.

Morgan Evans
Morgan Evans (3)

Treating The Fuel System

Modern pump fuel lacks heavy lubricating properties. Standard ultra-low-sulfur diesel damages sensitive internal injection components over time. Pouring Hot Shot’s Everyday Diesel Treatment into the tank boosts cetane levels to burn the liquid much better. Evans also explained: “That concentration means a treated tank of fuel costs nearly half as much as some of the other competitors.” Meanwhile, gasoline-powered trucks run Gasoline Extreme to strip carbon buildup from cylinder walls for better mileage.

Morgan Evans (2)

Aerodynamics And Speed

Drivers distribute weight evenly across the axles to stop heavy trailers from swaying wildly on the highway. Capping the truck bed with a physical cover also stops heavy wind from catching the rear tailgate. Next, dropping the vehicle speed produces massive efficiency gains. Evans pointed out: “Reducing your speed from 75 or 80 down to 60 to 65 can increase your MPGs by up to 15%.” Activating cruise control prevents drivers from applying unnecessary throttle pressure.

Increase Fuel Economy Tips

Saving Money At The Pump

Basic mechanical adjustments keep extra cash in a bank account over thousands of towing miles. Drivers who increase fuel economy completely offset those sudden price hikes at the gas station. Applying small chemical treatments and using a lighter foot on the gas pedal saves massive amounts of fuel on a long road trip.