Please just read this thread until the middle/bottom of page 2. Hillarious:
Spoilers for everyone else:
Kid buys NOS for his motorbike, concerned it is not riding well.
The idea of applying the NOS to his fuel is to clean out the tank so that it runs better.
As we discover on page 2. It ends up he puts the ENERGY drink NOS into his bike opposed to the HIGH OCTANTE NOS into his bike instead.