I used to use 91 in my 2005 E320 but no longer available here so I have used 89.
On Sat, Jul 8, 2023, 3:00 PM dan penoff.com via Mercedes < mercedes@okiebenz.com> wrote: > I don’t see it any differently than the same car being run on 87. I > wouldn’t advise doing it long term, but as long as you’re not mashing the > throttle all the time or running at high speeds or under heavy loads. > > The ECU would compensate for any difference in fuel quality, I would > expect. > > Not sure why they would bother with 89 unless they can’t get 91 at all. > The cost difference is marginal. > > -D > > > On Jul 8, 2023, at 11:35 AM, Allan Streib via Mercedes < > mercedes@okiebenz.com> wrote: > > > > Well honestly I don't know. Would a tank or two of 89 hurt anything, > probably not. In a modern car the computer should compensate. But why did > MB specify 91 if they didn't think it was necessary. That is my view. > > > > > >> On Sat, Jul 8, 2023, at 13:30, Dwight Giles wrote: > >> tell me more > >> > >>> On Sat, Jul 8, 2023, 2:28 PM Allan Streib <astr...@fastmail.fm> wrote: > >>> No > >>> > >>> On Sat, Jul 8, 2023, at 13:08, Dwight Giles via Mercedes wrote: > >>>> A friend is buying a 2015 E350. 91 Octane is specified. Can he run 89 > in it > >>>> with no problems? > >>>> TIA > >>>> Dwight > >>>> _______________________________________ > >>>> http://www.okiebenz.com > >>>> > >>>> To search list archives http://www.okiebenz.com/archive/ > >>>> > >>>> To Unsubscribe or change delivery options go to: > >>>> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > > _______________________________________ > > http://www.okiebenz.com > > > > To search list archives http://www.okiebenz.com/archive/ > > > > To Unsubscribe or change delivery options go to: > > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > > > _______________________________________ > http://www.okiebenz.com > > To search list archives http://www.okiebenz.com/archive/ > > To Unsubscribe or change delivery options go to: > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > > _______________________________________ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
