Quote:
Originally Posted by SCBimmerKid
This may be a dumb question, but should I put the highest grade gasoline (93 in my area) for the break in period and then switch to the the 91 that the manufacturer suggests or just run 91 all the way through? Any thoughts?
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Its not going to make a difference for that period of time. Whats most important as far as gasoline goes, is the detergents your particular retailer adds. Any of the 'top tier' gasoline's should be adequate, but if your local station is not on the list, I would add a detergent like Techron or Seafoam on a regular basis, maybe once a month or e4 refils. The highest grade detergent mix is in Shell 93 octane, but their 89 and 87 grades are actually rather poor.