Class C MPG
I would like to trade my trailer for used 24-26 feet Class C Motorhome with 1 slideout. What is MPG average on 24-26 Class C motorhomes? Thank You.
Forum Discussion
Desert Captain wrote:
There is only one way to accurately compute your mileage. The tank has to filled to precisely the same level EVERY time. Different pumps will kick off at varying levels which insures you will get bogus mpg compuations.
The only way to even come close to the same fill level is to top it up until you can see the fuel in the fill tube, which by the way is prohibited on every pump: "Do not top off". If you do manage to get it exactly full, every time, over the course of a dozen or so tanks then and only then will your mpg computations have any validity/accuracy.
The typical rv'er gets the tank really, really full, drives several hundred miles and then fuels until the pump shuts off(any number of gallons short of his last fill). Now he does the math of miles divided by gallons and smiles proudly over his obvious driving skills that have netted him "X" mpg. Next he rushes to the internet to share his good fortune and obvious driving prowess.
:B
Actually you can get an extremely accurate mpg measurement with less effort than that, it just takes time. At some point, top your tank off to where you can see the fuel in the fill tube. Don't include the gallons for this fillup, but now record the odometer reading and for all subsequent fuelings, record every gallon that ever gets added to the tank (these refuelings can be of any amount - quarter-tank, half-tank, or anything else.) Then sometime later (could be dozens of fillups or many thousands of miles later - the longer you wait, the more accurate your calculation will be), fill up to that top off fill tube level again and include this last gallon quantity in your fuel total. Now you know the exact total number of gallons added between that very first top off and this top off, and can easily calculate a very accurate overall MPG value.
If you're so inclined, you can still do the procedure outlined by Desert Captain and top off the tank every fillup, but just keep the fuel running total accurate so the longer you keep doing this, the more accurate your long-term MPG calcs will be.
