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Old 09-04-2018, 09:04 AM
John MS John MS is offline
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Join Date: Oct 2014
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Mein Auto: 2014 Glacier Silver 328i
Originally Posted by JeffDunes View Post
If you are leasing the car, or if you do not plan on keeping it more than a few year, then use regular. If you want to keep the car for many years then use premium as it may prolong the life of the fuel system.
How will premium or higher octane gas prolong the life?
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