How Long Will Race Fuel Stay Fresh???

TNVIPER said:
If I am not mistaken some stations in Canada use a different octane number than the US...I know Europe does. The US octane is the average of the 2 octane numbers, (research octane number (RON) plus motor octane number (MON)) / 2....your 104 is probably RON and is probably same as 93 here..


Ill check it out but its Sunoco 104 ...
 
JTS VENOM PERFORMANCE said:
since when? after its opened it needs to be used, most of the properties will leave after it hits the oxygen in the air.

the race fuel we used was very highly oxygnated, it really depends on what you are calling "race fuel"

if its 110 or 116 it may be ok, but its properties have dropped some,

you need to immediatly cap it off after opening, never ever leave it in the sun.

the stuff we used , especially in the two stroke, we had to use thatweekend or thro it away , it was done. i know some may say thats BS, but you could actually tell a huge difference in tuning if we tried to use weeek old fuel.

butt then again it could have been because it was os oxygenated also.
sorry for the corfusing post, its prob the nyquil:argh:

Hope you feel better soon. My experience also, BITD, if we didn't use it at the track, it was done. It was 120 and red as blood....ARCO racing gas. But it definitely didn't keep. The car just wouldn't have that "ground pounding" sound if you ran gas older than about a week. Know that sound????
 

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