well ,you don´t go out with the aim to actually cheat ,but as you ask yourself what you could do to go faster you will end up checking the rulebook for loopholes.
I was always amused by competitors stating the series we were competing was useless because the regs did not allow for anything.. you have to be imaginative...
I once bought a barrell of racefuel and stored it in a nearby petrolstation complete with pump and official pricetag at 5€ per liter..

as any fuel officially available to anyone at a station in Germany was allowed..the scrutineer almost killed me when I could actually prove on the spot I was legally using rocket fuel..

of course the regs changed...