Using Porsche C30 instead of C20 in the EA839 engine

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Car in question is a 2020 Porsche Macan S which has the EA839 engine. A single turbo V6 making about 348hp that redlines at 6500rpm.

Interesting thing is that Porsche has 2 recommendations for the oil, C20 (0/5w20) or A40 (0/5w40) depending on the country. I believe this is because of the GPF or because of hotter climates in the Group 2 countries. In the US, none of the Porsche engines seem to have a GPF but a dummy in place. I've been thinking of using a C30 oil (PP Euro LX 0w30) because I am spending the next few months in Palm Springs where it's normally 110F the next 2-3 months and regularly hits 120+.

This is actually my second time with this engine because I had it before on my 9Y0 Cayenne. With that vehicle, I also used C30 without any issues. Before I do that again, just wanted to see what people thought about it. In the original early Audi versions of this engine, Audi recommended a 0w30 or 5w30 for it. My suspicion is that Porsche had to go to 0w20 to reach fuel economy regulations. They did a similar thing with the EA888 engines, they used to be rated for a 30w or 40w then suddenly changed to 20w without any significant changes to the engines.
 
If it was mine I'd run any sp rated a40 oil. Although i don't have a porsche but rather an ohv 2v per cyl gm v8 I'm running a40 rated 5w-40 instead of dexos 0w-20. Hard pass if you ask me. Although both our engines are very different both were respec'd to use thinner oil later on when they ran heavier grades before with the same clearances and other specifications. It's just fuel economy regulations. There's a member on here with a 2021 cayman s with the turbo flat 4 and is running motul 5w-40 and has 9k miles on it. I wouldn't run a 20 grade if it that macan was mine. It's just a corporate fuel economy target and the engines will still last long enough to make it out of warranty but it's been proven that timing components suffer thin oil the most in the long run.
 
Car in question is a 2020 Porsche Macan S which has the EA839 engine. A single turbo V6 making about 348hp that redlines at 6500rpm.

Interesting thing is that Porsche has 2 recommendations for the oil, C20 (0/5w20) or A40 (0/5w40) depending on the country. I believe this is because of the GPF or because of hotter climates in the Group 2 countries. In the US, none of the Porsche engines seem to have a GPF but a dummy in place. I've been thinking of using a C30 oil (PP Euro LX 0w30) because I am spending the next few months in Palm Springs where it's normally 110F the next 2-3 months and regularly hits 120+.

This is actually my second time with this engine because I had it before on my 9Y0 Cayenne. With that vehicle, I also used C30 without any issues. Before I do that again, just wanted to see what people thought about it. In the original early Audi versions of this engine, Audi recommended a 0w30 or 5w30 for it. My suspicion is that Porsche had to go to 0w20 to reach fuel economy regulations. They did a similar thing with the EA888 engines, they used to be rated for a 30w or 40w then suddenly changed to 20w without any significant changes to the engines.

Your cooling system and oil coolers maintain viscosity. You don't want to add additional heat to the engine if you don't need to buy choosing a heavier grade.. We're not talking an air cooled engine after all. :)


Anyways, C30 would be fine. Porsche won't recommend it because of CAFE/Emissions.
 
If it was mine I'd run any sp rated a40 oil. Although i don't have a porsche but rather an ohv 2v per cyl gm v8 I'm running a40 rated 5w-40 instead of dexos 0w-20. Hard pass if you ask me. Although both our engines are very different both were respec'd to use thinner oil later on when they ran heavier grades before with the same clearances and other specifications. It's just fuel economy regulations. There's a member on here with a 2021 cayman s with the turbo flat 4 and is running motul 5w-40 and has 9k miles on it. I wouldn't run a 20 grade if it that macan was mine. It's just a corporate fuel economy target and the engines will still last long enough to make it out of warranty but it's been proven that timing components suffer thin oil the most in the long run.
I have the 2021 Cayman S. Motul is a C40 spec oil which is what the car calls for.
 
So I replaced the fresh from dealership m1 c20 oil with Euro LX c30.

Far less noticeable vibration at idle in gear. It’s remarkable how much less there is, it’s the only thing I changed. I plan to add some ceratec later this week.
 
Had to get another dealer oil change to maintain warranty.

Might actually try doing some track days on this Macan S because it has PASM adjustable dampers and I can lower the car with air suspension.

Now which oil should I swap it out with or should I just go for it on the M1 ESP x2 0w20?

Saw an interesting video from Engineering Explained about thin oils.
 
Just use M1 ESP X4 0W-40 via Autozone special deal and don't use Ceratec unless you like donating money to German companies.
 
Had to get another dealer oil change to maintain warranty.

Might actually try doing some track days on this Macan S because it has PASM adjustable dampers and I can lower the car with air suspension.

Now which oil should I swap it out with or should I just go for it on the M1 ESP x2 0w20?

Saw an interesting video from Engineering Explained about thin oils.
Track? If you are going just to blow off some steam and do it once a month, Mobil1 ESP 0W40 X4 is good choice like @chris719 mentioned.
If not that:
Pennzoil Platinum Euro 5W40
Mobil1 0W40 FS
Castrol 0W40
Motul X-Cess 5W40 GEN2

Those are oils that will do good on occasional track day and still do 5k OCI.
 
Castrol 0w40 in my 2017 Macan S. it’s spec’d for A40 though. If you don’t have a DPF, the A40 won’t hurt yours.
 
Seems like M1 ESP 0w40 X4 is the darling right now?

Wow, motul is on sale right now: $30 https://eeuroparts.com/product/motul/110905 hmm never mind, shipping kills it.
It seems to hold viscosity really well, modern additive package still w some ester base stock, 3.8 HTHS from a 0W-40, C40 + A40 and VW/MB approvals. Other than availability in 5 qt jugs I can't find any negatives to this oil.
 
So seems like the dealer installed ESP X2, probably 0w20?

I think I might just run this for every day driving and switch out to M1 ESP Euro 5w30 which is a C30 oil when I think I'm going to thrash it or when I get to 5k miles.

Glamour shot for reference:
IMG_2621 Large.webp


IMG_2625 Large.webp
 
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