Terry - what are the knock counts with the mix of 91 and 100 on the race fuel map? Would you feel comfortable running this combo on a race track (a real one...where you actually turn the steering wheel and a session lasts longer than 15 seconds) in 100 ambient temperatures? What is the minimal safe ratio of 91:100 for use on a race track?
2010 Evo X - track/kiddie carpool beast [sold]
2013 328i - Wife's Car
2012 328i ED (June 12)