2009 Nissan GT-R Ultimate Road Trip Here's the deal. The car is a PT2 unit, as in pre-production. And it's right off of Nissan's Arizona proving grounds. Nissan engineer Bruce Robinson drove it west from that facility yesterday. According to him the car runs great but has a tendency to drool a little fuel down the side of the car when you fill it up. He also said we should invest in a case of octane booster. "We recommend 93, but it'll run on 91," he said. "I'd stop and get a few bottles."