Fuel economy and additives
I drive a Forest River Georgetown w 4 slides an a V10 Triton gs engine. Typically i drive 62-65 mph on the hwy. I will be doing a gas log of my fuel economy, but I think it is 7.5 mpg fully loaded. I...
Forum Discussion
Rick Jay wrote:
In my experience, the use of 10% ethanol fuel reduces my MPG by about 10%. I know the "experts" say it should only be reduced 2-3%, but in 4 different vehicles, INCLUDING my 8.1L W-22 Motorhome, the measured reduction in MPG over time hovers right around 10%. Pretty much all we have here in the NorthEast and I believe most of the East Coast, is 10% ethanol blends. It's **** near impossible to find pure gas. But when I'm on the road and DO find it, I use it!
So, IF you can find REAL gas for under a 10% price premium, I'd say go for it!
~Rick
This is because that engine isn’t optimized for ethanol. Ethanol is challenging because the percentage isn’t consistent. The ECU must be able to dynamically determine the ethanol percentage on the fly and adjust the timing and amount of fuel injected. If isn’t optimized then the fuel economy suffers.
