Pure Stock Fuel

[Mike Croley]

Pump gas is really impossible to check or police . And that's because pump gas can be one of hundreds of combinations . There are numerous manufacturers of gasoline with their own combination of additives, and many thousands of gas stations in North America . A very few branded stations purchase and sell only their brand of gasoline . Most are free to purchase any gasoline on the market , depending on which brand is cheaper at the terminal on a given day . So the gasoline you buy at the pump , in most cases could be any brand and probably won't be the same brand that it was last week . And the standards for pump gasoline are fairly relaxed compared to the standards for race gas . The ethanol content in pump gas can vary 2 or 3 percent from brand to brand , day to day . And there are pump gasolines that have no ethanol at all . And to add to the thousands of possible combinations of gasoline , there are 2 or 3 choices of octane at every pump , all of which have a different chemical make-up .
So setting benchmarks for testing pump gasoline would be impossible unless you allowed a pretty wide variance or the sanctioning body restricted pump gas to only one or two brands . And even that would be very difficult to police due to seasonal and regional variations .

[GallopinGhost]

It's understandable how difficult it can be to test pump gas. I just hope that when I'm in line for fuel check, I get waved thru, and the person checking fuel is on the same page. Thanks for the info.

[Terry Witzel]

I had a qualifying run dq'd at 2000 World Nats because the pump gas did not pass fuel check.

[ALMACK]

I am trying to figure the meaning behind this one line on the IHRA website at the bottom of the accepted fuels page:

"Pure Stock entries may utilize OEM unleaded blends meeting the rulebook specifications"


Then I go to the 2012 rulebook and the only thing I find is on page 97 (top left) is the following:

" The dielectric constant of gasoline for Stock will remain at 2.3 "

I plan on running unleaded pump gas in my Pure Stocker at the Pro-Am event at Mt. Parkway.

Do I have to worry about getting DQ'd ?
....or should I be learning how to check the D.C. of fuel ?

[LNorton]

Fuel is not checked at IHRA division races.

[danny waters sr]

Originally Posted by ALMACK

I am trying to figure the meaning behind this one line on the IHRA website at the bottom of the accepted fuels page:

"Pure Stock entries may utilize OEM unleaded blends meeting the rulebook specifications"


Then I go to the 2012 rulebook and the only thing I find is on page 97 (top left) is the following:

" The dielectric constant of gasoline for Stock will remain at 2.3 "

I plan on running unleaded pump gas in my Pure Stocker at the Pro-Am event at Mt. Parkway.

Do I have to worry about getting DQ'd ?
....or should I be learning how to check the D.C. of fuel ?

You should be fine...I never checked fuel at div races since i been working

[GallopinGhost]

Thanks for the info.

I'm going to run Shell 103, really not much else around except cheap convenience store stuff.