My mpg last summer was 6.67 for a average. Last months MPG was down to 5.59. Any ideas what happened?? Everything is the same except my MPG.
Mpg in winter
Discussion in 'Flatbed Trucking Forum' started by flatbedrunner, Mar 3, 2013.
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Winter fuel, cold air, and increased idle time will easily do that.
MNdriver Thanks this. -
5.59 you are doing GREAT!. mine has gone from 5.78 in august to 4.4 in january. but i also need to run the engine at 900rpm to unlaod, which can take an hour or so,which sucks fuel
Like MJ1657 said, winter fuel and cold air. -
Thats what everybody keeps telling me but if cold air does it. Then why do people put cold air induction on there engines to help with performance? Also what is in the winter blend that makes the fuel burn so poorly?
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Winter fuel has less BTU's, so it takes more fuel to make your truck move...
flatbedrunner and MJ1657 Thank this. -
It's more winter blends than cold air. The cold air is more dense. It creates more drag on the truck.
Just some of the reasoning's behind winter fuel mileage loss.MJ1657 Thanks this. -
You don't notice it as much on the electronic trucks but the old mechanical pump trucks were real dogs on #1 fuel. -
the dense winter air has the same effects as what you would refer to as burning rich,that's why in some parts of the country they have trucks set up for mountain driving the engine is timing is differently. dense air makes for a bad fuel/air mix
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winter fuel gives off less heat (btu) than summer fuel . The idea behind a cold air intake is to get the cooler ( more dense ) air to get more power, most cars get their air from under the hood where it is far hotter..Increased idle time is one of the biggest culprits , of fuel mileage decrease..
MJ1657 Thanks this. -
The key is that they add cold air induction for better performance, not better fuel economy.
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