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Given that back pressure is reduced, you seem to be alluding to some correlation to possible warranty concerns because of it?
I doubt if there are any real .mechanical issues but if there was an unrelated engine issue, I’d bet dollars to doughnuts that P dealership would use it try to wriggle out of warranty claims
900 miles on my new GT4. Ready for fluid changes. C-40 Spec oil is fairly hard to get, but available. It is indeed a different spec in order to cope with the GPF filters, although I wonder if the aftermarket OAP pipes would negate the need.
900 miles on my new GT4. Ready for fluid changes. C-40 Spec oil is fairly hard to get, but available. It is indeed a different spec in order to cope with the GPF filters, although I wonder if the aftermarket OAP pipes would negate the need.
Not if you want to be able to say that you used the warranty specified oil...
I doubt if there are any real .mechanical issues but if there was an unrelated engine issue, I’d bet dollars to doughnuts that P dealership would use it try to wriggle out of warranty claims
Not if you want to be able to say that you used the warranty specified oil...
Agree, but were you to use A40 oil, and were you to have an engine related warranty claim, what are the odds the dealer would pull a sample to determine if correct oil was in the crankcase? I'm betting pretty long.
Agree, but were you to use A40 oil, and were you to have an engine related warranty claim, what are the odds the dealer would pull a sample to determine if correct oil was in the crankcase? I'm betting pretty long.
Possibly, but as I have said all along, the C40 spec is not just about the GPF, it is all emission components on the engine and includes a better formulation to prevent LSPI; low speed pre-ignition... personally I will only use C40 spec oil in my 4.0l engine.
The scarcity of this oil should improve as more people ask for it specifically.
This oil is the correct weight and is C40 spec, curious if anyone is using Liquid Moly oil in the Porsche?
I used Liqui Moly ‘Synthoil’ exclusively in my 987 S. I can’t say with certainty that it worked any sort of magic but I always felt that the car seemed to like that oil. I am planning on continuing on with Liqui Moly in the 718. If even for the engineering alone that’s put into the jug (articulating pour spout and handle placement).
Last edited by Jim Rockford; 12-30-2020 at 11:54 PM.
Agree, but were you to use A40 oil, and were you to have an engine related warranty claim, what are the odds the dealer would pull a sample to determine if correct oil was in the crankcase? I'm betting pretty long.
I agree to use the specified oil and maintain records.
Regarding pulling a sample, how would you distinguish a C40 from an A40 used oil analysis?
how would you distinguish a C40 from an A40 used oil analysis?
Independently that would be impossible to determine. The only way to be able to differentiate would be to have unused and subsequent used samples of each and compare the analysis side by side to see if there was any statistically significant differences.
The parts manager at my dealership insisted that the quart of Mobil 1 I bought from him yesterday was the correct. C40 oil. He is wrong. I didn't argue but this is an unknown issue at this major dealership and probably most others. I had my first (free) oil change done there and unless they are using C40 from a special drum in the service area I have a engine full of dealer-installed A40 as does every other new Porsche in the service bay. PCNA must know of this and they are apparently unconcerned, as am I.
Honestly - in stock GT4 form, I’m as happy as a pig in muck. Love the sound - with the engine just behind your shoulders imho exhaust mods don’t do much for the driver, more for onlookers imho.
Independently that would be impossible to determine. The only way to be able to differentiate would be to have unused and subsequent used samples of each and compare the analysis side by side to see if there was any statistically significant differences.
Sorry, I doubt that. There are almost certainly differences in the add pack that are unique to the C40 formulation that would be easy to determine through analysis. Most additives are not consumed during the interval.
12-30-2020, 01:06 PM
