[Mike Croley]

Racing gasoline is a pretty consistent product , but there are a number of factors that will cause you to be bounced in tech .
Some of those factors are exposure to the atmosphere because of a poor fitting cap on the drum , jug , or fuel cell/fuel tank . Storing the race gas in extreme heat or cold will cause problems . Storing race gas in containers that previously held a different product , even if it was race gas will often get you bounced . Topping off the container of one brand or octane with a different brand or octane can cause problems .
The NHRA Fuel regs are simply an enforcement tool to try and keep the racing field level .
There is testing equipment that the racer can buy . In fact you can purchase the very same units NHRA uses , but they aren't cheap . And more importantly , your test results won't make any difference to the tech man , it's his equipment and his test that he goes by .
The best recommendation to avoid problems is to use fresh race gas , buy it from a reliable source , and take every precaution when you take a sample up to tech to be sure it's well sealed , and kept completely out of the sunlight .
The entire line of Renegade leaded racing fuels are on the accepted list for NHRA .