where do you guys tank up your C63?
MBWorld Fanatic!
Joined: Nov 2010
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FF. W212 E63 M156 non-pano 18" P2 ParkT NightV (gone but will be missed).
I would love to have Chevron but there is none near where I live. Either that or Shell.
Otherwise, you are okay if you stay wth the following retailers:
http://www.toptiergas.com/retailers.html
Otherwise, you are okay if you stay wth the following retailers:
http://www.toptiergas.com/retailers.html
Senior Member
Joined: Jun 2012
Posts: 420
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From: Los Angeles, CA
C63, 335i
I try to stay with Shell 91 or Chevron 91 here in CA. If I remember correctly, the issue with costco gas isn't with the gas itself but rather with the detergent and additive package that gets added. Costco and other cheap gas stations do not own any oil refineries and are forced to buy gas from major manufactures such as Chevron, Shell, Mobil, 76, etc. The gas is essentially the same until it reaches the gas station where the additives and detergents are added. The top tier gas stations have their own formulations that feature the latest technologies meant to prevent carbon build up and keep your engine clean while the other gas stations like costco who buy gas from the top tier suppliers are forced to rely on their own blend of detergents and additives. The top tier gas stations would never ship the same gas that goes to their own stations to costco or any of the cheap gas stations.
Junior Member
Joined: Jan 2012
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From: RSF, California
(My car); 2012 vw golf TDI manual. (dads car) 2011 C63 Amg. P31. Carbon trim.LSD.
There is a full service station in Rancho Santa Fe, CA, that has 91, 95, and 100 octane gas on the pump. 
. although pricing does reflect them being the only provider. 95 is like 6$ a gallon and 100 octane is 8$ a gallon.
. although pricing does reflect them being the only provider. 95 is like 6$ a gallon and 100 octane is 8$ a gallon.
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MBWorld Fanatic!
Joined: Feb 2009
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From: Northern NJ
2009 C63
No one likes Exxon 93?
I used to always go to either Exxon or Hess, then later became Exxon or Shell but I had a CEL issue that went away after I stopped going to the Shell closest to my house, never confirmed whether or not it was the cause but CEL is gone and I'm only going to Exxon now.
I used to always go to either Exxon or Hess, then later became Exxon or Shell but I had a CEL issue that went away after I stopped going to the Shell closest to my house, never confirmed whether or not it was the cause but CEL is gone and I'm only going to Exxon now.
Senior Member
Joined: Jun 2012
Posts: 420
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From: Los Angeles, CA
C63, 335i
Man that stuff is really expensive but you gotta pay to play I guess. I don't think for normal driving you'll feel a difference unless you tune the car to run on the higher octane fuel. But I've had friends with heavily modified BMW 335i run that stuff with the higher boost pressure and they say it makes a huge difference in terms of performance and knocking.
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From: Silicon Valley, CA
C63 AMG, P30
MBWorld Fanatic!
Joined: Aug 2009
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C63 AMG
I try to stay with Shell 91 or Chevron 91 here in CA. If I remember correctly, the issue with costco gas isn't with the gas itself but rather with the detergent and additive package that gets added. Costco and other cheap gas stations do not own any oil refineries and are forced to buy gas from major manufactures such as Chevron, Shell, Mobil, 76, etc. The gas is essentially the same until it reaches the gas station where the additives and detergents are added. The top tier gas stations have their own formulations that feature the latest technologies meant to prevent carbon build up and keep your engine clean while the other gas stations like costco who buy gas from the top tier suppliers are forced to rely on their own blend of detergents and additives. The top tier gas stations would never ship the same gas that goes to their own stations to costco or any of the cheap gas stations.
Since 1995, all gasoline sold in the U.S. must include an EPA-approved detergent additive. All Costco gas has always contained these additives. Costco gas stations are well maintained and our fuel has always been 100% guaranteed.
Increasing Federal emissions and mileage requirements, plus the competitive pressures of the automotive marketplace, have led to improved and more complicated engine designs. These improvements make many engines more sensitive to carbon deposits on intake valves and clogged fuel injectors. Dirty engines can sometimes trigger a "check engine" dashboard warning light. Many of the latest model vehicles perform better using fuel that contains more than the minimum EPA detergent requirement.
As our valued member, you expect Costco to always offer the finest quality products at the best possible price. Gasoline is no exception. Costco has closely studied fuel additives and engine deposits, and conducted extensive fuel tests at nationally-recognized laboratories. As a result, we decided to increase the detergent additives in our fuel to provide a better value to our members. Cleaner engines run better, run longer, and they pollute less.
Costco gas with Kirkland Signature Clean Power detergent additives contains five times the EPA detergent requirement. Clean Power doesn't just keep your engine clean - it also helps remove any existing deposits.
MBWorld Fanatic!
Joined: Jun 2011
Posts: 3,318
Likes: 171
From: Silicon Valley, CA
C63 AMG, P30
All gas in California is the same. Seriously, the only difference between gasoline in California is marketing. Let me explain. Lets say Chevron makes .10 per dollar profit on their gas per gallon. (Hypothetical number) Then, Costco comes up to them and says: Hey, we want to sell gas to our customers for a lesser price than what your selling yours for. Chevron says: Okay, the hell do you want me to do about it. Costco: I'll pay you $X per gallon of gas. Chevron says: Why would I sell you my gas, when I make more profit on my gas? Costco says: Because, you can make .10 profit per gallon on your gas, and an extra .04 per gallon on my gas. Chevron says: Hmm, profit is profit.
Moral of the story, all gas comes from the same place because it's cheaper for one company to supply many smaller companies. BULK gasoline makes cheaper gasoline!
By the way, I'm a Business major.
Moral of the story, all gas comes from the same place because it's cheaper for one company to supply many smaller companies. BULK gasoline makes cheaper gasoline!
By the way, I'm a Business major.
Senior Member
Joined: May 2011
Posts: 353
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C63 Coupe Edition 1
Too expensive and out of the way for me though, I use Shell as a first choice and Chevron as a second choice.
Senior Member
Joined: Jun 2012
Posts: 420
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From: Los Angeles, CA
C63, 335i
Is this the issue you're talking about...that perhaps Costco uses too much detergent additive for your liking?
Since 1995, all gasoline sold in the U.S. must include an EPA-approved detergent additive. All Costco gas has always contained these additives. Costco gas stations are well maintained and our fuel has always been 100% guaranteed.
Increasing Federal emissions and mileage requirements, plus the competitive pressures of the automotive marketplace, have led to improved and more complicated engine designs. These improvements make many engines more sensitive to carbon deposits on intake valves and clogged fuel injectors. Dirty engines can sometimes trigger a "check engine" dashboard warning light. Many of the latest model vehicles perform better using fuel that contains more than the minimum EPA detergent requirement.
As our valued member, you expect Costco to always offer the finest quality products at the best possible price. Gasoline is no exception. Costco has closely studied fuel additives and engine deposits, and conducted extensive fuel tests at nationally-recognized laboratories. As a result, we decided to increase the detergent additives in our fuel to provide a better value to our members. Cleaner engines run better, run longer, and they pollute less.
Costco gas with Kirkland Signature Clean Power detergent additives contains five times the EPA detergent requirement. Clean Power doesn't just keep your engine clean - it also helps remove any existing deposits.
Since 1995, all gasoline sold in the U.S. must include an EPA-approved detergent additive. All Costco gas has always contained these additives. Costco gas stations are well maintained and our fuel has always been 100% guaranteed.
Increasing Federal emissions and mileage requirements, plus the competitive pressures of the automotive marketplace, have led to improved and more complicated engine designs. These improvements make many engines more sensitive to carbon deposits on intake valves and clogged fuel injectors. Dirty engines can sometimes trigger a "check engine" dashboard warning light. Many of the latest model vehicles perform better using fuel that contains more than the minimum EPA detergent requirement.
As our valued member, you expect Costco to always offer the finest quality products at the best possible price. Gasoline is no exception. Costco has closely studied fuel additives and engine deposits, and conducted extensive fuel tests at nationally-recognized laboratories. As a result, we decided to increase the detergent additives in our fuel to provide a better value to our members. Cleaner engines run better, run longer, and they pollute less.
Costco gas with Kirkland Signature Clean Power detergent additives contains five times the EPA detergent requirement. Clean Power doesn't just keep your engine clean - it also helps remove any existing deposits.
Senior Member
Joined: Jun 2012
Posts: 420
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From: Los Angeles, CA
C63, 335i
Member
Joined: Nov 2010
Posts: 223
Likes: 2
C63 coupe P31, '11 G37s, '12 RR Evoque Prestige '10 QX56
While in Germany I only ran 100, so I was used to how the car felt with higher (than 91) octane. I filled it with 100 before dropping it off for shipping. Dealer informed me that they had to drain my fuel and refill (I'm assuming with 91). It might be all in my head, but the car did feel a little different.
I've been mixing 4-5 gallons of 100 with 91. The car does seem to run "smoother". Also, from empty, I did put a half tank of just 91 (after a full tank of the 100 mix). I didn't pay attention to my mpg from start/reset, but she seemed to burn through it much faster (maybe my foot was heavier for a bit).
Super Member
Joined: Apr 2012
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SLS
Shell, then Chevron, here. I wish we had 93 in CA. You can blend 100 and 91 to make 93 (5:2 ratio, I believe), but it's still not cost effective, and the stations supplying 100 at the pump are too far and few in between.
Super Member
Joined: Jun 2012
Posts: 815
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From: Fla. Snowbird.
Porsche 911 Turbo S 2014! E63S 14, Audi S8 13, CLS63 12, E550 12, C63 09, all tuned
All the gas comes from one local fuel depot, basically where is the closest refiner. It all about logistics. Valero is the largest in the country. It is all same except for some additives some companies add. But it is one convoluted mess, due to federal regs(ethanol and such). Have you noticed most of the fuel trucks have no name on them. It all depend are the market area where you live.
Basically, it does not matter, buy from where they turn a lot of fuel. I saw recently where independents got busted for selling regular as premium.
If you see a gas station with a truck filling the tanks, talk to the driver, they are a wealth of local info. I should know I just had the local diesel supplier put 1950 gallons in my boat Friday. Still high at $3.61/gal. ( please, do not do the math, I try not to look)
Basically, it does not matter, buy from where they turn a lot of fuel. I saw recently where independents got busted for selling regular as premium.
If you see a gas station with a truck filling the tanks, talk to the driver, they are a wealth of local info. I should know I just had the local diesel supplier put 1950 gallons in my boat Friday. Still high at $3.61/gal. ( please, do not do the math, I try not to look)
