Starting now, anyone can sign up for Caltex’s new contest, in which winning teams can win one year’s worth of fuel for up to eight team members. The first 750 members to sign up will be given a unique code, and then invite seven friends to compete. Whichever team uses up the most fuel during the 75 day period will win the contest. This competition is a part of Caltex’s 75th anniversary, and will run until Nov 15.