RE: The Toyota Corolla XRS has an 11.5:1 compression, do you think it can get by on 89 octane?
Toyota RECOMMENDS premium, does this mean it is not REQUIRED? I guess I'll have to wait and see if marbles show up with 89! She gets the car on Thursday, they are putting a sunroof in(she just had to have it and we could'nt find one with it).