The Booster Fuel has 2 types: High grade and Low grade. This page talks about the High-Grade type. High-Grade Booster Fuel. High-Grade gives a Temporary boost like Low-Grade. The High-Grade Booster has a duration of 19 seconds if that timer hits 0, you'll lose that Boost
Once again, the only disadvantage of High-Grade Fuel is that Thruster Fuel lasts significantly longer than BOTH types of booster fuel.