New Mobil Gas Formula Causing Check Engine Light(Chicago/Indiana) area
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2011 Mercedes c63
New Mobil Gas Formula Causing Check Engine Light(Chicago/Indiana) area
...So a couple Mobil Gas stations near me have a new "formula" in their Premium (93) fuels.
This new formula was changed in beggining of July. (At least in my area) and it is causing my check engine light to come on.
-Check engine code is P2097 which says (Post Catalyst Fuel trim system too rich)
I feel no power difference but i do have more of a backfire when letting off gas pedal,as the rpms go back down.
Has anyone else experienced this with mobil fuel or any other fuels? Kind of worrys me that it might be causing damage to my motor, what would you guys do? Would you guys be concerned? How do you guys feel about this.
Dont really wanna use any other fuel other than Mobil. Its been so good to me besides this...
This new formula was changed in beggining of July. (At least in my area) and it is causing my check engine light to come on.
-Check engine code is P2097 which says (Post Catalyst Fuel trim system too rich)
I feel no power difference but i do have more of a backfire when letting off gas pedal,as the rpms go back down.
Has anyone else experienced this with mobil fuel or any other fuels? Kind of worrys me that it might be causing damage to my motor, what would you guys do? Would you guys be concerned? How do you guys feel about this.
Dont really wanna use any other fuel other than Mobil. Its been so good to me besides this...
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From: New Orleans Area
2015 E400 Sedan
could be O2 sensor or exhaust leak just near O2 sensor
Or fuel is contaminated so are you going to the same Mobil Gas Station?
Maybe try SHELL or Anothe Name brand Premium fuel...
Or fuel is contaminated so are you going to the same Mobil Gas Station?
Maybe try SHELL or Anothe Name brand Premium fuel...
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2011 Mercedes c63
Not 02 sensor or a leak.
Its the new mobil fuel for sure..i tried another mobil gas station without the new formula and check engine light comes off. Check engine light doesnt come on with Shell VPower either.
Went back to that mobil and comes right back on aftwr filling up. Pissing me off lol
Its the new mobil fuel for sure..i tried another mobil gas station without the new formula and check engine light comes off. Check engine light doesnt come on with Shell VPower either.
Went back to that mobil and comes right back on aftwr filling up. Pissing me off lol
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From: Sarasota, Florida
2023 E450 Cabriolet, 2019 F150 Platinum, 2014 Dodge Challenger R/T
Did a unknowing experiment with the bikes... i have a 2004 harley, my local gas station not a mobil, buddy with same year harley aka same engine, mobil is down the street and he always fills up there... after about 20k miles his bike is running pretty crappy... we tear it down and plugs and valves have all kinds of deposits... my local tuner confirmed the same thing... Mobil oil is great, the gas sucks.
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2011 Mercedes c63
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From: Houston - Clear Lake
C63 coupe, Z3M Roadster garage queen
Looks like we may be seeing similar fuel changes from other suppliers.
The link Diabolis posted above says that Exxon-Mobil's new "Synergy Supreme+" has additive package that includes two new ingredients:
"The new formulation is engineered with four levels of defense against gunk, wear, corrosion and now friction to help keep engines running like new. According to the company, it is the brand's most advanced fuel and the result of more than a century of Shell fuels innovation."
The link Diabolis posted above says that Exxon-Mobil's new "Synergy Supreme+" has additive package that includes two new ingredients:
- A new friction modifier that reduces wear and tear on engines by 30 percent; and
- An enhanced detergent package that removes deposits left behind [by lower quality gasoline].
"The new formulation is engineered with four levels of defense against gunk, wear, corrosion and now friction to help keep engines running like new. According to the company, it is the brand's most advanced fuel and the result of more than a century of Shell fuels innovation."
MBWorld Fanatic!
Joined: Feb 2007
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From: Houston - Clear Lake
C63 coupe, Z3M Roadster garage queen
Did a unknowing experiment with the bikes... i have a 2004 harley, my local gas station not a mobil, buddy with same year harley aka same engine, mobil is down the street and he always fills up there... after about 20k miles his bike is running pretty crappy... we tear it down and plugs and valves have all kinds of deposits... my local tuner confirmed the same thing... Mobil oil is great, the gas sucks.
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Joined: Nov 2004
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2005 E55
I just put this gas in my car for the first time and I'm sticking to it from now on.
Noticed about 10% better throttle responce and the mid range feels really meaty and the pops and bangs are there.
Car is hitting 25 degrees on the cams on my race map and no other pump gas has done this. The most I would get is 20-23.
On ms100/109 I see 29 degrees on the cam profiles.
Put it simple this gas is amazing and not sure what's up with ops car
Noticed about 10% better throttle responce and the mid range feels really meaty and the pops and bangs are there.
Car is hitting 25 degrees on the cams on my race map and no other pump gas has done this. The most I would get is 20-23.
On ms100/109 I see 29 degrees on the cam profiles.
Put it simple this gas is amazing and not sure what's up with ops car
