 Take two. Shell V-Power Nitro plus premium gasoline is the fuel of choice, and I'll tell you why. They've really done their homework in the last couple of years, and they've now got one of the best detergent fuels on the market. They've got some great stuff on their website. If you go to Shell V-Power Nitro plus premium gasoline from the Shell website, and it talks about the characteristics of it and what it does.