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-   -   C 12 side note (https://classracer.com/classforum/showthread.php?t=47908)

jmantle 06-19-2013 09:45 PM
Re: C 12 side note
 
Quote:
Originally Posted by Jody Lang (Post 386910)
The real problem is the way the testing process is set up. To be clear the parameters or window that the fuel is suppose to test within.

When I've been close to failing fuel check it's always been on the low side. A few years back at Sonoma many of us were close to failing or failing.

I went and bought a fresh 5 out of a new drum. They tested it for me and said it was perfect, right in the middle. Why if when we fail it's always on the low side, but when the fuel is fresh it only starts out life in the middle?

Shouldn't it start out life at the top of the scale???
Doesn't seem to work that way. I had a jug of C11 checked at Mission last weekend from the bottom of a 2 year old drum, was told it was right in the middle. The fuel in my car was out of a fresh drum, apparently it was right in the middle too.

Jim Mantle V/SA

ss wannabee 06-20-2013 10:48 AM
Re: C 12 side note
 
BTW, what's the average price of C12 these days?

Are you saying that C12 might have more problems in testing than C11?

But it might be the equipment...possibly not being the same...or calibrated to a
specific standard?

Mike Pearson 06-20-2013 12:32 PM
Re: C 12 side note
 
Quote:
Originally Posted by ss wannabee (Post 387289)
BTW, what's the average price of C12 these days?

Are you saying that C12 might have more problems in testing than C11?

But it might be the equipment...possibly not being the same...or calibrated to a
specific standard?
Just bought some in sealed 5 gallon cans. $60 per can or $12/ gal. Never had either 11 or 12 fail. More issue with non VP fuel as the NHRA guys don't seem to like you using the other fuels. So I have been using C12 lately

Mike Croley 07-09-2013 04:32 PM
Re: C 12 side note
 
All fuel checks rely on proper handling and test procedures to be accurate. Things such as ambient air temps, beaker temps, contamination from the air or from equipment that hasn't been cleaned, calibrations that haven't been done or haven't been done properly.
And there are some brands of race gas that, although they advertise consistency, aren't really as consistent as they need to be batch to batch. Sometimes they won't pass even right off the truck.
Just be sure fuel samples are taken with great care, keep the samples out of direct sunlight at all times, and make sure the tested temperature is correct.

Bob Bender 07-09-2013 05:46 PM
Re: C 12 side note
 
Quote:
Originally Posted by Jody Lang (Post 386910)
The real problem is the way the testing process is set up. To be clear the parameters or window that the fuel is suppose to test within.

When I've been close to failing fuel check it's always been on the low side. A few years back at Sonoma many of us were close to failing or failing.

I went and bought a fresh 5 out of a new drum. They tested it for me and said it was perfect, right in the middle. Why if when we fail it's always on the low side, but when the fuel is fresh it only starts out life in the middle?

Shouldn't it start out life at the top of the scale???
When I worked for NHRA in the 80's I said the same thing. If the fuel tested on the low side most of the time you slow down. If it tested high then you should be DQ'ed. Throw out the low side test!!!!,

astikhossw 07-10-2013 01:43 PM
Re: C 12 side note
 
Did the cost of c-12 go up all over or just here in cali,i just payed 80.00 bucks for a 5 gallon can or 16.00 bucks a gallon.


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