decided that since 0w 30 royal purple does so good in the bike that i would try it in my wifes cobalt. it is the 2.2 non turbo and its brand new. instead of 0w 30 i went with 5w 30 just because the car doesnt rev that high. with normal full synthetic from castrol the car is averaging 29 mpg with my heavy ass foot. this includes city and highway driving. we bought this car in august and it already has 17k miles on it. i have made 2 trips from missouri to atlanta in it. both trips i averaged 36 mpg.
we will continue to use the balt the exact same way as before and i will update you guys on whether it did anything for fuel mileage or butt dyno.
