Quote:
Originally Posted by axis earl
Premium? I would have to see that to believe that statement. We put 15000 on our Axis with the 305 horsepower v10 using regular grade 87 octane and never heard anything close to pinging. Just drove almost 3000 miles in altitudes and grades in our 320 horsepower v10, same result. Show us.
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I have a 29M Windsport...I had to look this up myself. Fish and Dear is right.
Paraphrasing the Fuel Quality section of the Ford Owners manual...
Vehicle is designed to operate on minimum octane of 87.
For BEST vehicle and engine performance use octane rating of 91 or higher.
Performance gain for higher octane gas is most noticeable in hot weather and while towing.
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