I spoke to the Saleen tech line about this last year. For the series IV, it's recommended to be changed every 50k. Saleen has a special oil for it, call them and ask for NYE oil. You could also use synthetic 50w, but then they recommended you change it more often.
I spoke to the Saleen tech line about this last year. For the series IV, it's recommended to be changed every 50k. Saleen has a special oil for it, call them and ask for NYE oil. You could also use synthetic 50w, but then they recommended you change it more often.