so my mechanic filled my tank with 92ron

messi · 12-19-2011, 11:19 AM

He filled my tank with 92 ron fuel. what should i do? should i try to syphone the gas out the tank? its just street driving. it will be pain to drive out the whole tank of gas at low speeds all the time to avoid detonation.

JamesM3M5 · 12-19-2011, 11:46 AM

You'll only have a problem at full boost - hard driving. There are knock sensors to prevent damage when lower quality fuel is used.

And if it's 92 octane based on the (R+M)/2, that fuel is perfectly fine for 335s. If it's 92RON - Research Octane Number, then take it easy on the engine until you can refill with higher grade. Research Octane and Motor Octane numbers differ, where Motor Octane is a number based on harder use than Research Octane. MON will always be lower than RON. The actual number on the pump is the average of the two (hence (R+M)/2).

fdriller9 · 12-19-2011, 11:48 AM

Add a bottle of octane booster?

roberts5831 · 12-19-2011, 11:58 AM

Quote:

Originally Posted by messi

He filled my tank with 92 ron fuel. what should i do? should i try to syphone the gas out the tank? its just street driving. it will be pain to drive out the whole tank of gas at low speeds all the time to avoid detonation.

what type of gas do u usually use?

Chadd · 12-19-2011, 12:09 PM

Quote:

Originally Posted by *********

Add a bottle of octane booster?

This...

messi · 12-19-2011, 12:27 PM

Quote:

Originally Posted by JamesM3M5

You'll only have a problem at full boost - hard driving. There are knock sensors to prevent damage when lower quality fuel is used.

And if it's 92 octane based on the (R+M)/2, that fuel is perfectly fine for 335s. If it's 92RON - Research Octane Number, then take it easy on the engine until you can refill with higher grade. Research Octane and Motor Octane numbers differ, where Motor Octane is a number based on harder use than Research Octane. MON will always be lower than RON. The actual number on the pump is the average of the two (hence (R+M)/2).

Thanks bro, yup i understand the diff and its definitely 92RON which is crappy 87oct.

dcat151 · 12-19-2011, 02:26 PM

Quote:

Originally Posted by *********

Add a bottle of octane booster?

+1

BEAR-AvHistory · 12-19-2011, 03:50 PM

Octane booster is a waste of money..if you cant get 5 gal of racing gas to mix in just run off a 1/4 tank & top it up a few times & it will be OK.

Potty_Pants · 12-19-2011, 03:52 PM

Quote:

Originally Posted by BEAR-AvHistory

Octane booster is a waste of money..if you cant get 5 gal of racing gas to mix in just run off a 1/4 tank & top it up a few times & it will be OK.

+1

octane booster isnt going to do a damn thing ,except turn your plugs red.

take it easy on the car, put racing gas in the car and your good to go.

ppp

Tom K. · 12-19-2011, 05:03 PM

Drive moderately for roughly 1/2 a tank and then fill with 98 RON. The resulting mixture should be fine.

Tom

rayboy · 12-19-2011, 05:29 PM

tO BAD THIS HAPPENED , AND FOR YOUR MECHANIC TO DO THIS WOULD NOT BE PLEASED

aykim2188 · 12-19-2011, 07:55 PM

Quote:

Originally Posted by rayboy

tO BAD THIS HAPPENED , AND FOR YOUR MECHANIC TO DO THIS WOULD NOT BE PLEASED

12-19-2011, 11:19 AM	#1
messi First Lieutenant 15 Rep 368 Posts Drives: 2009 E92 335i MSport Coupe 6AT Join Date: Jun 2011 Location: Trinidad iTrader: (1)	so my mechanic filled my tank with 92ron He filled my tank with 92 ron fuel. what should i do? should i try to syphone the gas out the tank? its just street driving. it will be pain to drive out the whole tank of gas at low speeds all the time to avoid detonation.
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12-19-2011, 11:46 AM	#2
JamesM3M5 Some dude 92 Rep 1,780 Posts Drives: E92 335i Join Date: Sep 2011 Location: Northern VA iTrader: (0)	You'll only have a problem at full boost - hard driving. There are knock sensors to prevent damage when lower quality fuel is used. And if it's 92 octane based on the (R+M)/2, that fuel is perfectly fine for 335s. If it's 92RON - Research Octane Number, then take it easy on the engine until you can refill with higher grade. Research Octane and Motor Octane numbers differ, where Motor Octane is a number based on harder use than Research Octane. MON will always be lower than RON. The actual number on the pump is the average of the two (hence (R+M)/2). __________________ RRT E92 335i/6MT with stuff and things
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12-19-2011, 11:48 AM	#3
fdriller9 Banned 253 Rep 7,089 Posts Drives: '06 AW 330xi Join Date: Mar 2009 Location: North Jersey/Philly/NYC iTrader: (4) Garage List 2006 330xi [6.44]	Add a bottle of octane booster?
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12-19-2011, 03:50 PM	#8
BEAR-AvHistory 2020 Z4 M40i - 2022 M4C Convt 3129 Rep 5,264 Posts Drives: 2020 Z4 M40i - 2022 M4C Convrt Join Date: Jun 2011 Location: Raleigh, NC - OIB, NC iTrader: (0) Garage List 1965 COBRA (FFR rep ... [8.57] 2023 Jeep Wrangler ... [9.50] 2009 Yamaha V-Star [0.00] Cars 2-BMW, 2-FORD, ... [0.00] 2023 Ford Expeditio ... [0.00] 2020 Z4 M40i [10.00] 2022 BMW M4C [7.25] 1998 FORD Ranger 4X4 [0.00]	Octane booster is a waste of money..if you cant get 5 gal of racing gas to mix in just run off a 1/4 tank & top it up a few times & it will be OK. __________________ Kevin Dravit Gray, Black Leather, Moonlight Roof, Red Calipers 2022 M4C - 2020 Z4 M40i - 2023 FORD Expedition XLT Max 4X4 400BHP - 2009 V-Star - 1998 Ranger 4X4 5MT - 1965 Cobra (R) 5MT - 2023 Jeep Wrangler Sport S 6MT
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12-19-2011, 05:03 PM	#10
Tom K. Major General 124 Rep 5,627 Posts Drives: '07 328iT, '13 Boxster Join Date: Mar 2008 Location: Maryland iTrader: (0)	Drive moderately for roughly 1/2 a tank and then fill with 98 RON. The resulting mixture should be fine. Tom
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12-19-2011, 05:29 PM	#11
rayboy New Member 0 Rep 12 Posts Drives: '08 335i Join Date: Dec 2011 Location: Canada iTrader: (0)	fUEL tO BAD THIS HAPPENED , AND FOR YOUR MECHANIC TO DO THIS WOULD NOT BE PLEASED
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