Thread: Quick question
View Single Post
      02-04-2012, 11:14 AM   #7
Tom K.
Major General
 
Tom K.'s Avatar
 
Drives: '07 328iT, '13 Boxster
Join Date: Mar 2008
Location: Maryland

Posts: 5,358
iTrader: (0)

While BMW has tuned the 328i for 91 octane, it will run satisfactorily on 87 (see the owner's manual) with possibly some performance/economy degradation under certain circumstances.

My experience has been that 89 is not cost effective - either opt for 91/93 or go with 87. Another possibility is to alternate tanks of regular and premium.

Tom
Tom K. is offline   United_States
0
Reply With Quote