Quote:
Originally Posted by sgdude  i have a question:
i have a 97 GTP, bought it 14 months ago, always ran it on 86 octane (in NM regular is 86, not 87), never encountered problems, such as knocking. i recently filled up on premium 91 octane (ive used 4 gallons so far, i burn a gallon a day) i see no difference. so is it really important? |
In the long run , running higher octane gas with other preventative maintenance will extend the life of your engine.I allways use sunoco 93 octance...my car seems to like it.