Originally Posted by Hooy
why are you only using 87 oct?!?! I'm sure you mean 89 since that's what we got here, but our cars require 91+ on stock tune!
i thought we have 87oct 89oct and 91oct? or is it 89 91 93 loll i dont know i put reg unleded cause no point to spend 40 cents more per gallon when it dont benfit me since i need to do something to figure out why my mpg is so chitty! lol