It makes sense. The more weight you haul, the more resistance you create, and the more fuel you burn. Lighten your load, and you can increase your fuel economy. But at the same time, you’re most likely reducing your profitability.
When it comes to improving performance & fuel economy, little is more important than those 18 wheels that carry your goods down the road. Everything from tread depth to tire selection & pressure combine to make or break your budget.
When you’re pushing 50 tons down an open road doing the legal limit, you’re bound to meet some resistance. Wind, most likely. And if your rig isn’t designed and spec’d to minimize aerodynamic drag, you’re certainly paying for it in increased fuel costs.