tell me anybody run regular unleaded
Senior Member
Joined: Jan 2005
Posts: 314
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From: Bryson City NC
93 300SE Rauch "Smoke"
Been using it in Bigblue since the first day I got it! Been over a year now and I have not seen or felt anything negitive! 
Sure I will be blasted for this but it works in my V8! With the computers and the knock sensors if theres a ping or knock she will get dialed back! And yes I know the little sign says premium! 
Smokie
Sure I will be blasted for this but it works in my V8! With the computers and the knock sensors if theres a ping or knock she will get dialed back! And yes I know the little sign says premium! Smokie
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Originally Posted by tilac1
I kinda doubt a two valve head with 9:1 compression really needs premium (even though it says so).
aggressive spark plug timing could require premiuim.
anyway, i use regular. i sometimes get an off idle stumble and use fuel injector cleaner.
i dont the stumble so much when i use premium. but i think it depends on the gas really.
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Joined: Aug 2002
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From: Germany
'00 S320 W220, '98 A160 W168/ sold in 2005 '86 260 E W124 '90 260E W124
It's a matter of timing, and the standard timing asks for premium!!! If you want to switch to regular 89 or 91 you need to change the resistors which are controlling the timing of ignition. It is the so called EZL thingy which has like 3 positions to adjust for lower fuel octane numbers. You can turn the standard positon to "N" which shall work for 91. My guess you loose little performance and may end up with a lower MPG, which obviously eats up the advantage of the better price of regular.
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Joined: Feb 2006
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Hi, i use regular gas (86 octans) in my 230E and i dont have any problem. When i have a long trip that force my car, i use a mix of 40% regular and 60%super and it works perfectly. Maybe you can try an octane booster, you can find it in any gas station.
Best regards
Best regards
Newbie
Joined: Feb 2006
Posts: 20
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From: MA
300E 3.2 DOHC 24v
about a month ago i was using regular in mine cause i was to cheap to pay 2.75 a gallon for premeium.latly ive been using premium again and i have noticed how my gas guage doesnt go down so fast. so im guessing u get better mileage.
Senior Member
Joined: Jan 2005
Posts: 314
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From: Bryson City NC
93 300SE Rauch "Smoke"
My guess it's a timng issue! Use reg and puter dials back the timing so a little loss in milage! Turn up octane and you turn up the timing! a little gain in milage! But then again I might just be full of crap!!! But sounds good to me!!! 
Smokie
But sounds good to me!!! Smokie
Member
Joined: Sep 2004
Posts: 169
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From: Kentucky
500E's
Originally Posted by Smokiesman
My guess it's a timng issue! Use reg and puter dials back the timing so a little loss in milage! Turn up octane and you turn up the timing! a little gain in milage! But then again I might just be full of crap!!! But sounds good to me!!!
Smokie
But sounds good to me!!! Smokie
On a 'glad I live in the South' note. I drove into my favorite station today and they were bumping the tanks up .25 per gallon as I turned into the station. I did not make it in time to get premium at 2.14. When I went to pay the owner gave me the pre-raise price since she saw me coming in as they were changing. Nice savings on 26 gallons.
Senior Member
Joined: Jan 2005
Posts: 314
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From: Bryson City NC
93 300SE Rauch "Smoke"
That's a good question Bear! Not sure when MB went to elec ign? I do know my 95 has it for sure and a 92 Audi 100 I dismantled had a computer ign. Usually the knock sensors will dial back the timing! I saw reg fuel down in Greenville SC for $1.95 !! Damn never thought I would think that a bargin! 
Smokie
Usually the knock sensors will dial back the timing! I saw reg fuel down in Greenville SC for $1.95 !! Damn never thought I would think that a bargin! Smokie
Last edited by Smokiesman; Feb 17, 2006 at 08:31 AM.
Senior Member
Joined: Nov 2005
Posts: 267
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From: nottingham / uk
silver 2002 c32 amg
Originally Posted by j.wilhite
does a 92 300 e really need super unl does it really matter at 140.000. been to affraid to try butt 2.65 a gollon sucks
sorry about the rant but maybe this will make you feel better about having to use that s/unleaded knowing that it could be worse
Member
Joined: Sep 2004
Posts: 169
Likes: 0
From: Kentucky
500E's
Originally Posted by timberman
i wish we could get petrol this cheap over here , my car costs me the equivalent of about $87.00 dollars to fill and this happens on average twice a week .its about time somebody put a stop to our rip off prices
sorry about the rant but maybe this will make you feel better about having to use that s/unleaded knowing that it could be worse
sorry about the rant but maybe this will make you feel better about having to use that s/unleaded knowing that it could be worse
Member
Joined: Sep 2004
Posts: 169
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From: Kentucky
500E's
Originally Posted by Smokiesman
I saw reg fuel down in Greenville SC for $1.95 !! Damn never thought I would think that a bargin!
Smokie
Smokie
I have a minor in Economics and I cannot figure out a single damned thing that is jerking prices around like they have been. In the past month there have not been any interruptions in flow, even threats. Futures have fallen at a steady rate and there is not supply/demand issue that should jack the price. They even dropped the requirement for MBTE or MTBE or METB or whatever which should drop the price about .08. I have a headache now, I will quit.
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Joined: Nov 2005
Posts: 267
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From: nottingham / uk
silver 2002 c32 amg
Originally Posted by McBear300E
My wife and I took an 1800 mile drive from Milton Keynes through Scotland and back to MK in a W210 a couple of years ago and I just handed the gas attendant my credit card and signed it, never looking at the cost. I figured that would just ruin the trip for me. That was an absolutely wonderful drive. It was the first time we had not just taken the train between London and Edinburgh.
hey i got my car from milton keynes,
1800 miles that must have definitely been the scenic route, i'd say if you have the time and don't mind the cost this is the way to go, i hate using the motorways
Senior Member
Joined: Jun 2003
Posts: 302
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From: Salem, OR
08 Lexus GS350 AWD. 08 Lexus RX350 AWD - wife's. 94 MBZ E320 - still have it.
Do you have "unleaded plus" available? For the last seven years I use that 90% of the time, and the other 10% I use regular gas. I filled up the tank with premium couple of times, it did not make any difference.
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Joined: Sep 2004
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From: edmonton alberta
91' 300e // 99 300e TD // 00' ML55 AMG
"The car says use premium unleaded. It probably means something" norcal124
no **** eh,,, regular? wtf are u that cheap , it must matter.... in germany they run 100 octane am i wrong? i run 91 premium thats all we get here.. regular is like what?85? that must do something no??
no **** eh,,, regular? wtf are u that cheap , it must matter.... in germany they run 100 octane am i wrong? i run 91 premium thats all we get here.. regular is like what?85? that must do something no??
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Joined: Jun 2003
Posts: 302
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From: Salem, OR
08 Lexus GS350 AWD. 08 Lexus RX350 AWD - wife's. 94 MBZ E320 - still have it.
Maybe, but I put almost 100k miles in the last 7 years on this car, using non-premium fuel. I checked the accelleration with both "89" and "91", it was the same. Also when the car had 100K miles (it has 130k now) I replaced the head gasket (typical MBZ oil leak), and the head, as well as the pistons, were virgin clean, without that black crusty crap. Don't get me wrong, I am not trying to convince the world not to use the premium gas, I am just sharing my experience.
