Peniston Oils is a fake sponsor for the BMW 330d that Jeremy, Richard, James, and the Stig drove during the 24 hour Britcar endurance race. Peniston Oils was created by Jeremy whilst another fake sponsor, Larsen's Biscuits , was created by Richard. When the doors were opened however, the fake sponsor spelled 'penis' as the logo for Peniston Oils split between the 'penis' and the 'ton'. In the Big Book of Top Gear 2011 the Peniston Oils logo is used again on the fuel pumps of the fake Top Gear petrol station.
Peniston Oils may take its name from Penistone, a town near Jeremy's hometown of Doncaster.