A40 vs C40 Approved Motor Oil
07-28-2021, 11:47 PM
#91
Pro
There's still so much confusion over this oil, it's really amazing that Porsche hasn't educated their dealers better. They either don't think it's that big a deal or they are totally disorganized.
07-29-2021, 12:03 AM
#92
RL Community Team
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I received my shipment of oil from Suncoast. They sent the Mobil 1 ESP Formula, EMISSION SYSTEM PROTECTION. Their site showed this as C40 oil, but it does not list this on the box or bottles. Mobil's website lists it as "GM/Opel/Vauxhall/Chevrolet Diesel and Gasoline models" and no mention of any European car. Mobil has one oil listed as the C40 standard, Mobil 1 EXP X3, which specifically shows the C40 spec.......
So screw it I'm using this stuff......
Mike
So screw it I'm using this stuff......
Mike
@348SStb shows in his post the correct oil is labeled as such, no need to guess or take one's word for it.
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slilley (07-29-2021)
07-29-2021, 04:26 PM
#93
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Yup been back and forth with Suncoast....just emailed them again, referencing this thread.
I am writing Porsche USA today. I want something in writing from them. If the local dealers are using the wrong oil, that is on them and Porsche USA needs to straighten that out.
I don't know if this new spec is that much of an issue, but I'd rather just use the recommended oil. It's priced about the same.
I think I will call the dealer who sold me the car, cold call them just to ask "what oil should I use" and see what they say.
Mike
I am writing Porsche USA today. I want something in writing from them. If the local dealers are using the wrong oil, that is on them and Porsche USA needs to straighten that out.
I don't know if this new spec is that much of an issue, but I'd rather just use the recommended oil. It's priced about the same.
I think I will call the dealer who sold me the car, cold call them just to ask "what oil should I use" and see what they say.
Mike
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Kelsey (09-16-2021)
07-29-2021, 04:34 PM
#94
Rennlist Member
Yup been back and forth with Suncoast....just emailed them again, referencing this thread.
I am writing Porsche USA today. I want something in writing from them. If the local dealers are using the wrong oil, that is on them and Porsche USA needs to straighten that out.
I don't know if this new spec is that much of an issue, but I'd rather just use the recommended oil. It's priced about the same.
I think I will call the dealer who sold me the car, cold call them just to ask "what oil should I use" and see what they say.
Mike
I am writing Porsche USA today. I want something in writing from them. If the local dealers are using the wrong oil, that is on them and Porsche USA needs to straighten that out.
I don't know if this new spec is that much of an issue, but I'd rather just use the recommended oil. It's priced about the same.
I think I will call the dealer who sold me the car, cold call them just to ask "what oil should I use" and see what they say.
Mike
07-29-2021, 04:48 PM
#95
RL Community Team
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Yup been back and forth with Suncoast....just emailed them again, referencing this thread.
I am writing Porsche USA today. I want something in writing from them. If the local dealers are using the wrong oil, that is on them and Porsche USA needs to straighten that out.
I don't know if this new spec is that much of an issue, but I'd rather just use the recommended oil. It's priced about the same.
I think I will call the dealer who sold me the car, cold call them just to ask "what oil should I use" and see what they say.
Mike
I am writing Porsche USA today. I want something in writing from them. If the local dealers are using the wrong oil, that is on them and Porsche USA needs to straighten that out.
I don't know if this new spec is that much of an issue, but I'd rather just use the recommended oil. It's priced about the same.
I think I will call the dealer who sold me the car, cold call them just to ask "what oil should I use" and see what they say.
Mike
Last edited by Westcoast; 07-29-2021 at 04:49 PM.
07-29-2021, 04:53 PM
#96
Burning Brakes
The Owner’s Manual also specifically indicates 5W-40 as an acceptable viscosity at temperatures about -13 degrees Fahrenheit. Yet my local Porsche dealer told me that they wouldn’t be responsible for warranty claims if I used the 5W-40-spec C40 Motul or Liqui Moly — “Our system shows 0W-40 for this model. I have been at Porsche for 25 years and I’ve never used 5W-40.”
I mean, the Owner’s Manual shows 5W-40, but somehow that was disputed by the Porsche dealer.
This is what many of us are dealing with. Porsche: if you’re reading- please straighten this thing out.
Aronis- if able, please mention this to Porsche when you correspond- that “in some cases, Owners are being denied the opportunity to use C40-approved 5W-40 oil, which is clearly specified in the Owner’s Manual.”
Last edited by 348SStb; 07-29-2021 at 04:55 PM.
07-29-2021, 05:06 PM
#97
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Oh no?
The Owner’s Manual also specifically indicates 5W-40 as an acceptable viscosity at temperatures about -13 degrees Fahrenheit. Yet my local Porsche dealer told me that they wouldn’t be responsible for warranty claims if I used the 5W-40-spec C40 Motul or Liqui Moly — “Our system shows 0W-40 for this model. I have been at Porsche for 25 years and I’ve never used 5W-40.”
I mean, the Owner’s Manual shows 5W-40, but somehow that was disputed by the Porsche dealer.
This is what many of us are dealing with. Porsche: if you’re reading- please straighten this thing out.
Aronis- if able, please mention this to Porsche when you correspond- that “in some cases, Owners are being denied the opportunity to use C40-approved 5W-40 oil, which is clearly specified in the Owner’s Manual.”
The Owner’s Manual also specifically indicates 5W-40 as an acceptable viscosity at temperatures about -13 degrees Fahrenheit. Yet my local Porsche dealer told me that they wouldn’t be responsible for warranty claims if I used the 5W-40-spec C40 Motul or Liqui Moly — “Our system shows 0W-40 for this model. I have been at Porsche for 25 years and I’ve never used 5W-40.”
I mean, the Owner’s Manual shows 5W-40, but somehow that was disputed by the Porsche dealer.
This is what many of us are dealing with. Porsche: if you’re reading- please straighten this thing out.
Aronis- if able, please mention this to Porsche when you correspond- that “in some cases, Owners are being denied the opportunity to use C40-approved 5W-40 oil, which is clearly specified in the Owner’s Manual.”
So the dealer statement about what the system shows and them never using 5w-40 is laughable as is their attempt to restrict your use of manufacturer approved oils.
07-29-2021, 05:12 PM
#98
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07-29-2021, 06:10 PM
#99
I need to add 2 quarts of oil to my C GTS but cannot source Mobil 1 EPS 0W-40 X3. Has anyone tried Motul 8100 X-Clean Gen2 5W40? It is a C40 oil that costs $50 for 5 liters and is available on Amazon https://www.amazon.com/Motul-8100-X-...omotive&sr=1-6
Most important... has the C40 rating and it's available. I figure if it's available there's no excuse or reason not to use it and I know if there ever was an issue I can prove beyond the shadow of a doubt the proper spec oil was used!
07-29-2021, 10:28 PM
#100
Pro
FWIW, I finally got to my dealer last week and asked the parts guy at the counter if they had C40 oil. He went in the back to ask, was gone at least 10 minutes and returned to say yes, they had it in stock. Porsche still hasn't done a good job of informing all their dealers of the oil though, which is inexcusable.
However, all that said I doubt the A40 oil will harm a 4.0 engine, atleast for several thousand miles at least. No GPF "guts", no turbo, so the A40 likely will provide adequate protection. Still....
However, all that said I doubt the A40 oil will harm a 4.0 engine, atleast for several thousand miles at least. No GPF "guts", no turbo, so the A40 likely will provide adequate protection. Still....
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slilley (07-30-2021)
07-31-2021, 05:44 PM
#101
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More info.....Suncoast called Porsche with my VIN number and confirmed C40 spec needs to be used. Any they are shipping some to me.....
I can't understand why it's such a hassle to buy the Mobil 1 ESP X3 here. This change was made three years ago....Oh, I know......."COVID" the universal excuse....
Mike
I can't understand why it's such a hassle to buy the Mobil 1 ESP X3 here. This change was made three years ago....Oh, I know......."COVID" the universal excuse....
Mike
08-01-2021, 12:57 PM
#102
RL Community Team
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FWIW, I finally got to my dealer last week and asked the parts guy at the counter if they had C40 oil. He went in the back to ask, was gone at least 10 minutes and returned to say yes, they had it in stock. Porsche still hasn't done a good job of informing all their dealers of the oil though, which is inexcusable.
However, all that said I doubt the A40 oil will harm a 4.0 engine, atleast for several thousand miles at least. No GPF "guts", no turbo, so the A40 likely will provide adequate protection. Still....
However, all that said I doubt the A40 oil will harm a 4.0 engine, atleast for several thousand miles at least. No GPF "guts", no turbo, so the A40 likely will provide adequate protection. Still....
08-01-2021, 12:59 PM
#103
RL Community Team
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More info.....Suncoast called Porsche with my VIN number and confirmed C40 spec needs to be used. Any they are shipping some to me.....
I can't understand why it's such a hassle to buy the Mobil 1 ESP X3 here. This change was made three years ago....Oh, I know......."COVID" the universal excuse....
Mike
I can't understand why it's such a hassle to buy the Mobil 1 ESP X3 here. This change was made three years ago....Oh, I know......."COVID" the universal excuse....
Mike
08-01-2021, 01:01 PM
#104
Three Wheelin'
08-01-2021, 03:15 PM
#105
Pro
I'm not disagreeing, just saying the A40 oil will likely provide adequate engine protection to those unfortunate enough to have a dealer who installs it, and hopefully before too many oil changes occur on a given engine these dealers will get up to speed on proper engine lubrication. I'm using C40 oil myself and will continue to. One thought: this new oil has been required in flat 6 and flat 4 engines since May, 2018 I think(correct me if I'm wrong, I don't remember the changeover date) but did any of those early cars have the GPF? I don't think so, nor did they have the "improved" emissions specs either, I'm guessing, but maybe they did. I've not read anything to support this.