MPG getting worse on Motorhome
Hi-I have a 1997 22'Shasta Ford E-350 chassis with V-10 triton engine. Class C with over 100,000 miles. The rig was pretty consistently getting 10MPG. About a year or more ago the MPG dropped to ab...
Forum Discussion
robatthelake wrote:
I have a theory! I am of the opinion that all the Fuel Gas and Diesel contains fewer BTU 's than it did Five Years ago!!
Gas, yes, diesel not so much. The culprit is called Ethanol.
It doesn't contain nearly as many BTU's as gasoline does.
E15 gasoline only has about 82-85% of the BTU's (amount of potential energy) that gas used to have. If you lose 15% of the available energy! you also lose 15% of the work it will do and so use 15% more fuel to do the same work.
15% of 10 mpg is 1.5 mpg, about what you're losing.
The bump up is the higher energy in the injector cleaner.
