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AR15.COM
2/19/2009 7:06:03 AM EDT
A few weeks back I thought my truck was having trouble.  Then someone else mentioed they noticed it too.  I it's the 10% ethanol gas?
2/19/2009 7:30:48 AM EDT
[#1]
Mileage is just the start.  Fuel system components all die sooner too.  Generally, the older your truck the faster they are affected.
2/19/2009 7:53:44 AM EDT
[#2]
I was noticing a sharp drop.  I changed gas stations and the problem went away.  Oil changes help.
2/19/2009 8:00:14 AM EDT
[#3]
I drive about 1000 miles a week and about a month ago my car went from 30 mpg to 25 mpg.
I need to service my  air filter and change oil and oil filter this weekend and it should pop back up.
2/19/2009 9:14:40 AM EDT
[#4]
I remember hearing reports after Ike that the refineries would be allowed to make gasoline with less restrictions to allow cheaper and quicker production.  maybe that easier to produce gas didn't have as much ethanol in it and has finally run out?  i'm just speculating.
2/19/2009 10:16:02 AM EDT
[#5]
Quoted:
A few weeks back I thought my truck was having trouble.  Then someone else mentioed they noticed it too.  I it's the 10% ethanol gas?




My 2007 Harley feels like it runs significantly better without the ethanol.  I didn't even think about until one day when i was going on a long trip.  Filled up in Houston with 10%, then when i filled up at a station without the additive i noticed the difference.
2/19/2009 10:19:33 AM EDT
[#6]
Quoted:
A few weeks back I thought my truck was having trouble.  Then someone else mentioed they noticed it too.  I it's the 10% ethanol gas?


I believe that is part of the reduction in mpg. I think it also depends on what part of Texas you live in and how the gas is formulated to meet emission standards.
I get better mileage when I get gas in San Antonio and drive around there. Living here in the DFW area my mileage is about 1 to 2 mpg less.

2/19/2009 10:30:47 AM EDT
[#7]
I haven't noticed any difference with my Vectrix.
2/19/2009 1:10:39 PM EDT
[#8]
10% ethanol in gasoline??
Is this required?
Is it stated on the pump?
Do different areas in TX have different requirements?

My only gas vehicle is an older motorcycle, and I have not noticed differences in mileage here in the Austin area. I keep very close tabs on my vehicle mileage.
2/19/2009 1:19:30 PM EDT
[#9]
the 10% is a summer blend...I think evaporative issues....i believe required in most larger municipalities. I would think that whether marked at the pump or not that all stations in the vacinity of larger cities are getting the same as most dist. either are supplying the 10% or not but not both.

Lots of potential fuel robbers beside the 10% mix...air filter, tire pressures, etc. All need to be checked VERY regularly. Tire pressure can vary quickly surprisingly.

Side note; I got a serious effiency boost by installing a K&N filter element. Easy to clean and lasts longer...try it.
2/19/2009 1:20:23 PM EDT
[#10]
Quoted:
10% ethanol in gasoline??
Is this required?
Is it stated on the pump?
Do different areas in TX have different requirements?

My only gas vehicle is an older motorcycle, and I have not noticed differences in mileage here in the Austin area. I keep very close tabs on my vehicle mileage.



It's stated on the pump.


I do not know if it's required.
2/19/2009 1:57:35 PM EDT
[#11]
Yes, it is proven that Ethanol fuel gets less MPG than conventional fuel.  While it produces "cleaner" emissions you have to burn more of it to go the same distance.  Amazing how all the tree huggers fail to mention that.   Not sure if it is true or not, but I've heard that it takes roughly 1.1 to 1.3 gallons of conventional fuel to produce 1 gallon of ethanol here in the US.  Not very evironmentally friendly if you ask me.  I think part of the problem is the US uses corn while other countries use more efficient sources to produce ethanol.  Right now in Texas, the cleaner fuels are only mandatory in those cities that fail the EPA's clean air standards. They seem to threaten San Antonio with it a couple times a year.  In some states, it is mandatory for everyone.  This is one of the biggest problems with Obama and the EPA leaving it up to the states to make their own rules, some stricter than the fed guidelines.  A recent problem that has come up is in Florida.  Instead of just pushing the cleaner gas for cars, they recenlty forced all boat marinas to use it as well.  They never bothered to check to see how it affected marine engines and now there are reports of parts failing because the weren't made to handle it.  Same is being found out with smaller engines like for lawnmowers.  The fed needs to standardize the rules for all states, even if it means as bad as California, instead of having all these different issues.
2/19/2009 3:16:14 PM EDT
[#12]
I've noticed that for the past several years since the ethanol mix began or if not began at least when I noticed it.
2/19/2009 6:31:48 PM EDT
[#13]
Go talk to the 2 cycle mechanics for boats and small engines and they will tell you how bad ethanol is and how it will cut your engine life . Chevron in my area is one of the few that does not have ethanol blended in their fuel.
2/19/2009 8:14:30 PM EDT
[#14]
Quoted:
the 10% is a summer blend

Odd. In the NW, the 10% is the winter blend.
2/19/2009 8:38:54 PM EDT
[#15]
Quoted:
Quoted:
the 10% is a summer blend

Odd. In the NW, the 10% is the winter blend.


yup


Oxygenated is typically the winter blend for areas with ozone/smog problems.  All of the non-attainment areas and most of the rest of the state use oxygenated fuel now.  Ethanol is the most common oxygenate now since MTBE got some deservedly bad press.


E10(10% ethanol) and E20(not common in TX) should have a 1-5% max difference from 100% gasoline in a properly maintained car.  E85 will have up to a 25% difference in an engine designed for E85.

mm
2/20/2009 3:28:14 AM EDT
[#16]
It's funny,
I am temporarily working up here in Oklahoma and I have noticed a lot of gas stations have signs up touting the fact that they sell only 100% gasoline, none with ethanol.
One station had a sign on the pump stating that they were given a choice, but due to mileage and engine wear concerns they chose NOT to offer gas with ethanol.
2/20/2009 3:12:58 PM EDT
[#17]
The station I get gas at has had the 10% ethanol signs out for six months or more.  Over the last two months mine has gone down from 22-22.5 to 20-20.5.

I wonder if they put the signs up before they actually started selling the new fuel.