C63 AMG (W204) 2008 - 2015

Vancouver/Richmond BC Gas ???? Carbon Deposit

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Old 02-23-2013, 12:13 AM
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Vancouver/Richmond BC Gas ???? Carbon Deposit

Fellow AMG owner's which Gas do you use? Those in Richmond/vancouver BC

Chevron 94 or Shell 91 Vpower ??/

Recently i had my car serviced and the tech told me i had Cabon deposit.... he asked if i was using **** gas.. i told him i used 94 chevron..

he concluded that either:
1) 94 chevron has ethanol
2) i baby my car n didnt drive it aggressively result in carbon deposits..
Old 02-23-2013, 12:17 AM
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I thought Chevron 94 is ethanol free? So is Shell 91.
Old 02-23-2013, 01:12 AM
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Our gas is ****e. Chevron 94 has zero ethanol.
I have a GT-R now and have to supplement the 94 octane chevron with ethanol in order to get satisfactory performance from my car and prevent limp mode due to knocking from the crappy gas.
Old 02-23-2013, 02:14 AM
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Originally Posted by malfius
Fellow AMG owner's which Gas do you use? Those in Richmond/vancouver BC

Chevron 94 or Shell 91 Vpower ??/

Recently i had my car serviced and the tech told me i had Cabon deposit.... he asked if i was using **** gas.. i told him i used 94 chevron..

he concluded that either:
1) 94 chevron has ethanol
2) i baby my car n didnt drive it aggressively result in carbon deposits..

well... the tech is like a car doctor... so you gotta do what your doctor tells you..... now go burn a set of rears this weekend
Old 02-23-2013, 06:51 AM
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2011 C63 Calcite White
chev 94
Old 02-23-2013, 01:10 PM
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Do you run in sport mode or downshift in manual on a regular basis?

I am running 94 octane and notice more a carbon build up when I drive in sport mode... and I notice excessive carbon build up when I downshift in manual mode. which makes sense...

I Don't think your tech knows what he is talking about... if you baby the car there should be less carbon. Was your tech older?
Some of these old geezers thing these things are old muscle cars where you gotta go "blow the carbon out"... probably started as an excuse or myth to go drive aggressively back in the 1960's

I think your tech should be checking on why your car is running rich and not burning up all the fuel cleanly.
Old 02-23-2013, 01:56 PM
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C63s run rich from the factory. Run the sea form through it and call weistec for a tune.
Old 03-01-2013, 09:15 PM
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I had a CEL at the dealer for 2 weeks . They found carbon fouling right bank sensor (don't recall exactly but have record). They cleaned it with a pipe cleaner (yep like when you used to smoke the pipe). The wife drives the car and now more aggressively in S with at least one open throttle per day.
Old 03-01-2013, 10:28 PM
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I have had 2 C63's in the last 5 years and 94 Octane Chevron ONLY.

No ethanol at all.

Nothing wrong with the car, runs great.

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