The MR12 race fuel, by VP Racing, will make 10-15 more horsepower over pump gas, we have not had any issues using MR12 when using our Brock’s Performance mapping just dont leave fuel in the tank, must be drained and pump gas ran through system after each use. We are going on our 3rd successful year using Oxygenated fuel in the Ninja H2, with multiple records to back up our success. If you are worried, use MRX02.