Summer 2020 Travelore 50
P. 1

 Aspects of MPG:
Improving Fuel Economy
Official publication of the Diesel RV Club
VERY OFTEN THE QUESTION IS HEARD: “How many miles to the gallon?” Almost as often the response is: “If you’re worried about fuel economy you shouldn’t be thinking about an RV.” While there is some truth to this, RVing continues to have a lower carbon footprint than flying a family of four on a vacation. Perspective is everything. So, what are the factors that affect fuel economy, and what one can do to achieve a level with which they are comfortable?
Fuel economy is impacted by1:
• Aerodynamics, especially when
driving at speeds greater than 50 mph.
• Rolling resistance, when under 50 mph.
• Accessories such as an alterna- tor, cooling fan, or air-condi- tioning compressor.
• Factors you control; speed, proper tire selection, tire infla- tion, a clean radiator, and dash A/C properly charged.
Two factors are always in conflict – power and economy. You cannot maximize both at the same time. Economy uses less fuel and power consumes more.
Aerodynamics
Air drag is a function of speed. Every 2% reduction in aerodynamic drag results in approximately 1% improve-
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DRVC Travelore
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Winter 2021
Issue 52
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