I used regular 87 unleaded!
Thread Starter
Member
Joined: Aug 2004
Posts: 178
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From: Garden Grove, CA
06 Granite Grey c230
I used regular 87 unleaded!
Am I in trouble? My friend borrowed the car and was trying to be nice by filling my tank he said he put 87 unleaded in it?
It seems to run fine. No knocking... anyone else use regular 87 ocatane unleaded?
Thanks for any replies.
Sanny
It seems to run fine. No knocking... anyone else use regular 87 ocatane unleaded?
Thanks for any replies.
Sanny
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Joined: Mar 2004
Posts: 821
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From: Irvine CA
c43
as far as i know, using anything lower than what is stated by mercedes is bad, very bad, I've never seen anyone do it so I couldn't judge it to be true, but who knows, plus I think that sounded funny.
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Joined: Jul 2004
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97 C280
Originally Posted by Ashkan's C280
as far as i know, using anything lower than what is stated by mercedes is bad, very bad, I've never seen anyone do it so I couldn't judge it to be true, but who knows, plus I think that sounded funny.
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Joined: Sep 2003
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From: Boston
I can't imagine putting 87 in it for one tank is going to make any difference. Just don't push it hard. Also, what about putting a bottle or two of octane booster? Maybe something like this...
STP Octane Booster
STP Octane Booster
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Joined: Apr 2003
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From: San Antonio, Texas
2016 BMW Z4 sDrive35i M Sport
I don't know about yours, but my owners manual has specific instructions on what to do when you accidentally or HAVE TO run 87. Check it out. I ran it one time and my car didn't run (actually died on me once) so well. I ended up following the instructions in the owners manual and put some octane booster in it.
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From: Boston
'05 A4 1.8TQM6
you get lower gas mileage and probably a little power loss. engines can run on any of the three octanes. I wouldn't go as low as 87...89 or 91/93 should more than likely be fine 
One tank of 87 isn't going to kill the car, don't worry. Nice of your friend to fill up the tank though
some people have found no difference in 89 vs 91/93 in gas mileage.
One tank of 87 isn't going to kill the car, don't worry. Nice of your friend to fill up the tank though
some people have found no difference in 89 vs 91/93 in gas mileage.
