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It actually slightly worse with the GPF formula. Lots of “independent” testing done all over the place including YouTube. C40 is for GPF
There is a list of approved C40 oils you can use that is not mobile 1 or, if you don’t have a GPF (or don’t care) you can use whatever spec oil you like. .
Incorrect. C40 is a new API-SP, SN Plus category that also reduces calcium to reduce the likelihood of low speed preignition (LSPI) which can occur in any direct injected turbocharged engine. If your DI-Turbo engine sustains damage from LSPI, A40 oil (high calcium) will be a contributing factor and void your warranty.
This is not my UOA. This is from another RL member who posted it in a different thread. Note difference in viscosity and wear metals. However I would expect wear metals to be high during first 4k miles anyway but do NOT want a thin-out of viscosity - oil during this period.
Last edited by Fullyield; Sep 29, 2024 at 06:59 AM.
I would love to see them try to deny me a warranty claim based on using a non approved oil. Would not happen. But I would likely never have an engine related claim since I observe proper habits and good oils. Having customers go 10k on the factory fill is just crazy. Nothing is valid from that point forward. BMW seems to understand this on their M cars. Rev limit until factory oil is out at about 1500 miles. I believe they also employ a conduction like system to determine if metal is in the oil as a determinant of when to change. After thinking about this more and mentioning that I will change to a non approved Motul, I might just let the dealer change to whatever they fill with. They won't honor the first free service unless it's nearing the year mark however. That kind of tells you everything you need to know.
Having customers go 10k on the factory fill is just crazy..
Could not agree more with this statement…….especially with forced induction. A frequent oil change interval solves many oil problems. The best oil is clean oil! But, Oil should not drop out of viscosity at 4k miles on a factory fill…..which is concerning to me.
FYI if due to special circumstances you can't make the one year or mileage limit for the courtesy oil change (in my case it was weather related and 370 miles to only deaslership) after notifying PNA they informed me that a grace period of up to 6 months is OK as long as you let both them and your dealer know.
FYI if due to special circumstances you can't make the one year or mileage limit for the courtesy oil change (in my case it was weather related and 370 miles to only deaslership) after notifying PNA they informed me that a grace period of up to 6 months is OK as long as you let both them and your dealer know.
Or what, they'll void your warranty? I'm willing to bet someone's clueless wife/son/daughter out there has gotten a new Porsche as a gift and then driven it for 3 years without an oil change and Porsche would still honor their warranty if something went wrong. They/d call it a "goodwill" repair. Part of the high cost of a new car is they have to factor in fixing vehicles driven by complete knuckleheads.
Correct, TopTec is Liqui Moly. I simply was answering the OP who said he was opting for Motul, depending on flavor both are C40 certified just not 0w-40 only 5w-40.
Go for it and let me know how that works out if you know anyone who would subscribe to your thought
No, I actually care about my cars and keep them well maintained. But I'm also not going to call Porsche or the dealership to ask for permission to be a month (or a 1,000 miles) late on my oil change.
EDIT: Neverming about all of this. I went back and re-read your post and I somehow missed that you were talking about the free/courtesy oil change that Porsche includes when you buy the car. Sorry.
No worries, I simply wanted to point out that since all manufacturers are a stickler for warranty issues if you're so much as a day late, in my case I made sure it was all documented as it was a safety issue. I was not going to drive from Fairbanks to Anchorage in the middle of winter for an oil change. They readily agreed and notified the dealer with no hassles informing me that there is a 6 month grace period. When it comes to warranty stuff you want to cross all your Ts and dot every I.
The answer that always comes to mind when asked why did I buy a Porsche "because I enjoy the pain".
I doubt you'll void your warranty as long as you are C40 (even though that's unnecessary in the US given we don't have a GPF... but that's a whole other discussion) compliant. As long as you pay attention to the C40 (vs A40) and not to the viscosity I very much doubt you would void you warranty even if they knew you weren't running Mobil1.
siberian
That's the thing, from the above post, it appears there's only one C40 oil and that's Mobile1. All other oils have lost their cert.
Last edited by ThrustNormal; Sep 30, 2024 at 03:19 PM.
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