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icr350

07-18-2007 12:47 AM

Which gas to use 91 octane or 87 octane

I understand that Mercedes recommends us to use 91 octane on the car. I was just wondering if anyone here used 87 or 89 when filling up.

Scott M

08-21-2007 01:25 PM

RE: Which gas to use 91 octane or 87 octane

I've used 87 for over two years on my SL... doesn't hurt anything.

Scott

Chesney95

10-10-2007 04:49 PM

RE: Which gas to use 91 octane or 87 octane

Using 87 presently and no problems.

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