no, dont htink so. You cant run those on 87 at all, but they will run
fine on 89
Tony Wirtel wrote:
Does the M103 have a knock sensor? I didn't think they did. Mine pings big
time with 87.
Tony Wirtel
-----Original Message-----
From: Donald Snook <dsn...@mtsqh.com>
Date: Tuesday, Dec 30, 2008 11:54 am
Subject: [MBZ] Premium v. Regular was Re: Fuel prices
To: 'Mercedes Discussion List' <mercedes@okiebenz.com>Reply-To: Mercedes
Discussion List <mercedes@okiebenz.com>
Andrew wrote: "Do you require premium or regular gas?"
That is up in the air right now. The manual says premium, the fuel
cap/door say premium. But, I have asked a few others that have this car and
some of them say it needs premium and others say it is a waste of money. I
have not noticed any difference in mileage or performance when using 87
octane. I was concerned that it might "ping" but it has not. I don't know
what to think, so I have been putting in 91 (premium) about every other
tank.
I talked to one of the techs at the dealership I worked at and he said
that if the octane is too low and it starts to ping, the knock sensor will
catch it and it will retard the timing slightly to compensate for it. So,
it is possible that I might have less power with 87 than with 91. I don't
really know what to think. In the past (especially in my 90 300SEL), I
thought I could tell a difference when I put in 87 rather than 91. Maybe I
was just imagining it.
Donald H. Snook
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Kaleb C. Striplin/Claremore, OK
92 300SD, 92 300E 4Matic, 91 300D, 91 300E, 89 560SEL,
89 300E, 87 300SDL x2, 85 380SE 5.0 Euro, 85 190D, 84 190D x2,
84 300D euro manny, 81 240D, 80 240D, 76 240D, 76 300D,
http://www.okiebenz.com
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