Hi m8

I did not just use the Blue Thunder fuel to tune the engine. I followed the Instrusions on tunning and use the Blue Thunder as a fail safe just in case I whent wrong. But you do make a good point and it could have been a fualt on my part, if that is the case I am sure they will tell me so and I will have learnt a very important lesson.

This is the Info about Blue Thunder Fuel


DYNAMITE BLUE THUNDER & RACE FORMULA FUEL

Everyday
The original Dynamite Blue Thunder fuel was
formulated by world-renowned engine expert Ron Paris nearly 6 years ago. The goal was to develop a car fuel that would quickly cause the engine to come up to operating temperature and allow correct tuning of the carburettor within just a few laps. It would then maintain that temperature throughout even the longest of mains.

In addition special temperature sensitive additives were used that actually vaporize at specific heat range thus giving Blue Thunder "over lean protection" preventing damage to your engine. With Blue Thunder's original formula, if the carburettor is adjusted to an overly lean setting, the engine will hesitate under hard acceleration, like off slow speed corners, indicating to the driver to pull into the pits and richen the needle settings avoiding damage to your engine.

This is Blue Thunder's unique Thermal Overload Protection at work making it the perfect fuel for sport racers. Thermal Overload Protection prevents racers from overheating their engines due to an overly lean needle setting which could cause damage to their engine.