Kendall, what I am saying is that often in RC racing, racers look at the number of gallons run on a motor as a measure of longevity. This is not an accurate measure when fuel mileage differs. I will give you an example that will help explain this:
These numbers are exaggerated to make it easier to understand. This is not a representation of any company's motor performance, just an explanation of how fuel mileage comes into play.
We will say that each motor drives 1 mile for every 5 minutes driven.
For ease of math we will say we have extra large tanks and they will hold a gallon.
Kendall's motor gets 5 minutes per tank
Kendall's motor will last 10 gallons
Kraig's motor gets 15 minutes per tank
Kraig's motor will only last 5 gallons
Kendall's motor: 5 min/tank *1 tank/gal *10 gal*1 mile/5 min
Distance driven: 50 miles
Kraig's motor: 15 min/tank * 1 tank/gal *5 gal*1 mile/5 min
Distance driven: 75 miles
Even though Kendall's motor went through 10 gallons and Kraig's only lasted 5, Kraig's lasted 50% longer.
Which motor would you rather have?
Kraig