Premium gas prices to high!!




With fuel prices for premium escalating everyday, you might be tempted to use a midgrade fuel or God forbid regular unleaded.
But be warned... Even with the high fuel prices only use premium fuels. The vehicle was designed and built for performance so anything less is not recommended. The lower the octane the more detonation will occur in the combustion chamber causing quenches which is combustion before the piston reaches top dead center, this will retard ignition causing low power output and with time excessive carbon build up on the piston tops and cylinder head which can lead to rough idle, long cranking time during start up, knocking noise in engine on light throttle acceleration and sometimes knocking when engine is cold. Some cases can cause oil consumption due to sticking piston rings from carbon. Carbon build up is not covered under warranty. 
Some people say gas is gas..... If that is true then why do Motorsports teams use special racing fuel? And why do gas station have different grades? Wouldn't it be in the manufactures best interest to tell customers they can use regular gas?
I watch people constantly use regular fuel in vehicles that require premium every time I'm at the pumps... Very sad.
Getting 30mpg is also a plus with the accord for when gas gets 4.50/gallon.
with my last tune before we leaned it out a little I got 113 miles on a full tank of gas with the beast.That would cost me over 300 a month just to get to work everyday.




My wallet took a big hit when I had to fill up the E63, but back then I drove my Mini Cooper S more than the E63. Well, I can't say that anymore, as both of my cars are AMGs. But eventually gas prices will taper off and settle back down, as the demand decreases, and the Middle East Crisis settles.
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My wallet took a big hit when I had to fill up the E63, but back then I drove my Mini Cooper S more than the E63. Well, I can't say that anymore, as both of my cars are AMGs. But eventually gas prices will taper off and settle back down, as the demand decreases, and the Middle East Crisis settles.
The Best of Mercedes & AMG
With fuel prices for premium escalating everyday, you might be tempted to use a midgrade fuel or God forbid regular unleaded.
But be warned... Even with the high fuel prices only use premium fuels. The vehicle was designed and built for performance so anything less is not recommended. The lower the octane the more detonation will occur in the combustion chamber causing quenches which is combustion before the piston reaches top dead center, this will retard ignition causing low power output and with time excessive carbon build up on the piston tops and cylinder head which can lead to rough idle, long cranking time during start up, knocking noise in engine on light throttle acceleration and sometimes knocking when engine is cold. Some cases can cause oil consumption due to sticking piston rings from carbon. Carbon build up is not covered under warranty. 
Some people say gas is gas..... If that is true then why do Motorsports teams use special racing fuel? And why do gas station have different grades? Wouldn't it be in the manufactures best interest to tell customers they can use regular gas?
I watch people constantly use regular fuel in vehicles that require premium every time I'm at the pumps... Very sad.




The bottom line, is that you have to pay to play...!









Yes, in Europe and Australia your gas prices are double to what we're paying. So we shouldn't be complaining, but rejoicing at our prices.
Your jungle juice has higher octane compared to our kool aid. So in comparison your running racing fuel, and we're running watered down apple cider








henceforth, when you are not heavily loading the motor, the engine will loaf along like any other 9.0cr motor. The Bosch motronic ecu uses both knock sensors and other sensors like the ECT, IAT, MAP sensor and others to determine timing maps.
now, lets say someone was taking a long trip on a highway where they did not intend to heavily load the motor.
By running 87 octane, the car would run just fine as the computer would continually adjust the timing curve based on whether or not it sees detonation. This part we agree on.
However, your argument that running 87 will cause carbon build up has no basis in fact. By retarding the timing to the limit of spark knock, you are still fully burning the fuel (to at least the commanded a/f anyways). Where is the carbon build up coming from in this instance?
My point is this:
You can run 87 all day long if you don't plan on getting on it. The car will run fine even if you DO get on it, but you will obviously be down on power, and quite frankly, relying on a knock sensor is a dangerous gamble on a $40,000 engine.
I wouldn't run regular or midgrade, but to say it will result in nearly instantaneous carbon build up is not supported by fact.




Yes, in Europe and Australia your gas prices are double to what we're paying. So we shouldn't be complaining, but rejoicing at our prices.
Your jungle juice has higher octane compared to our kool aid. So in comparison your running racing fuel, and we're running watered down apple cider

87 Octane in North America is the same as 92 Octane in Europe
94 Octane in North America is the same as 98 Octane in Europe




My wallet took a big hit when I had to fill up the E63, but back then I drove my Mini Cooper S more than the E63. Well, I can't say that anymore, as both of my cars are AMGs. But eventually gas prices will taper off and settle back down, as the demand decreases, and the Middle East Crisis settles.
predicting $4 by summer - the Bay Area $4 was 2 weeks ago - gotta pay to play - still cheaper than EU








