REAL GAS - NO QTrip E10

[Hoss]

quote:Originally posted by nathanm

quote:Originally posted by citizen72

What about the octane rating listed on the pump. If they are using E10 it should be listed lower but they are not.

Ethanol has a higher octane rating than gasoline. Both RON and MON are over 100. (MON is around 102, while RON is about 129)

There are other alcohols that are somewhat less.

Let's keep in the front of our minds though that octane rating is not the end-all of deciding how efficient a fuel is.  Basically, all octane does is rate a fuels resistance to pre-ignition (knocking).  Also, it has no effect or bearing on how much fuel to air is required to burn at the same efficiency as any other fuel.  It's been proven that gasoline runs more efficient than E10.

http://en.wikipedia.org/wiki/Octane_rating

[izmophonik]

I started to buy into your story until you referenced Wikipedia.  Oh well...almost had me.

[moonovrmia]

Ethanol does reduce fuel mileage and more important it "grabs" water.. so to all of you out there using the majority of fuel sold at Tulsa stores.. don't let your tanks get near empty chasing the price, because a fuel tank will build condensation and you will possibly see problems with fuel injectors, fuel pumps etc. And no one has mentioned the pollution and fuel demand from the diesel thats needed to make the ethanol. You are utilizing more fuel and generating more problems than is published.
Gasoline use will rise because you will be filling your tanks more often due loss of MPG.
Ethanol as an alternative fuel will be the biggest mistake this country has taken, utilizing a food staple and you havent seen the beginning yet!

[Hoss]

quote:Originally posted by izmophonik

I started to buy into your story until you referenced Wikipedia.  Oh well...almost had me.

I use wikipedia not as a reliable source, but as a place where it gathers reliable sources.  I never uses it as the end-all, but a starting place.

And it is true.  Octane rates knock resistance, not overall fuel performance.  It's something the oil industry hopes you buy into in the way most have.

[Red Arrow]

quote:Originally posted by moonovrmia

Ethanol does reduce fuel mileage and more important it "grabs" water.. so to all of you out there using the majority of fuel sold at Tulsa stores.. don't let your tanks get near empty chasing the price, because a fuel tank will build condensation and you will possibly see problems with fuel injectors, fuel pumps etc. And no one has mentioned the pollution and fuel demand from the diesel thats needed to make the ethanol. You are utilizing more fuel and generating more problems than is published.
Gasoline use will rise because you will be filling your tanks more often due loss of MPG.
Ethanol as an alternative fuel will be the biggest mistake this country has taken, utilizing a food staple and you havent seen the beginning yet!

A little ethanol allows the water to be dissolved in the gas and alcohol. This allows the water to pass through the system rather than becoming a slug of stuff that won't pass through the filters and remainder of the fuel system.  We used to put some denatured alcohol (ethanol) in our boat gas tank at the beginning of the season just for that very reason, to take care of the condensation.  Too much ethanol affects things like gaskets and o-rings.  Winter blend gasoline used to contain small amounts of ethanol to prevent gas line freeze.

[taljr]

I too drive a lot of miles (600-1200) each week.  I have a spreadsheet running on my mileage and logging each tank.

I recently quit using QT (2 tanks ago) after 27 years of loyalty after finding out I have been getting blended fuel since September of '07.  

My first tank of gas I got 39.3 miles per gallon (filled up in fayetville Sinclair?).  Since arriving back in Tulsa and using QT exclusively, my best tank has been 38 and dropping to 33 (hwy) now.  I contribute a lot of this to a/c on a 4 cylinder drag.  City has been from 27 to 29 mpg.  

My first tank on Phillips (21st and Lewis) city tank was 30.95 mpg.  I'm quite happy with this 1st tank result.  

I have been hearing alot of different opinions on ethanol blends robbing gas mileage which is important with my amount of driving.

I am actively seeking out stations that have non-blended gas and can post my findings later as I continue to accumulate them.  (I think there should be a thread on this exclusively)  but this is my first or 2nd post so I am not there as of now.

I am on only my 2nd tank of non-blended gas and have not hit a Hwy route to get a good gauge of my hwy efficiency.  I am also using a gas covalizer. sp? and still have mixed feelings about this crap right now.  

I almost blew a wad on a Hydro-assist system that I could pay for in 3 months driving but a knowledgable mechanic said to wait a couple of months for some new developments that are in the works.  I am definately not scared to be a test subject for any of these new systems if they are proven.  The covalizer was cheap enough for me to try without a huge layout.

I have also heard pros and cons on what ethanol does to an engine (ie fuel injectors) over time so I have got to do some more internet research.  I am just posting for anybody else that has an interest or has done some of this research already that can share.  ie harm to engines or injectors from ethanol.

Getting late, gotta go.

[AngieB]

No ethanol in the fuel at the Sinclair 1-Stop at 41st & Union.