siberian

992 isn't mentioned on their website and their 0w-40 is A40 spec. Are you using that on your 992?

siberian

siberian

OK, so I called Tech Support @Liqui Moly and after a long discussion I'll try and provide a recap of the main points.

1) The reason no other manufacturer (than Mobil1) has come out with a C40 0w-40 is a confidential agreement that has been reached between them and Porsche (my take is with the aim to send the cars and customers back to dealers for service as no commercial outlet seems to carry this at this time). When I asked as to whether or when Liqui Moly might be coming out with a 0w-40 C40 version, he said as soon as Porsche's agreement wanes or the formula becomes available. Meaning don't hold your breath it won't happen tomorrow.

2) Liqui Moly does have a C40 spec oil (5w-40) available, part number 22122 and has been "blessed" by Porsche in Germany meeting the C40 spec saying so on the label (even though FCP Euro doesn't mention Porsche in the car selection). Other places to find this is Pelican Parts, Amazon...

https://www.fcpeuro.com/products/5w4...qui-moly-22122

3) For those like myself facing extreme temperatures (below -20F) requiring added viscosity by low temperatures he suggested combining CERATEC (two 300ml cans for 8.5 to 9.0 qts) to help coat and provide additional protections. In this case for say 9 quarts of oil capacity you would add 7 quarts of whatever oil of choice and then your two 300 ml cans of CERATEC, topping off with regular oil as needed.

( )

4) Concerning GPF and non GPF and C40. Following a very in depth discussion here are the salient points:

a) No US cars to date have ACTIVE GPF's. That said, everything else that comprises the said system (minus the filters) meaning: software code, injection, compression, etc. is built around the GPF concept. He obviously wouldn't say whether running an A40 oil on a 992 would cause any damage nor whether running a C40 5w-40 rather than 0w-40 would provide exactly the same protection. However it seems that combining CERATEK with C40 5w-40 and using common sense - meaning letting the engine warm up before flooring it (not really on the drawing board by -40F), could be a better solution that just plain vanilla Mobil1 0w-40.

5) CERATEC (Part number 20002). Lastly, this product is good for 30,000 miles so that once the product has mixed following a couple of hundred miles it forms a bond and protection layer in the engine. It thus does not have to be re-added with every oil change.

Look forward to your thoughts

siberian

991.1 Guy

I'm using the 5-40.

mrmichaelsankey

CERATEC sounds like the original selling point of the old Castrol Magantec oil, coats your engine…

siberian

Thanx, For Central Florida it's of course a no brainer.

siberian

siberian

Your thoughts on added protection beyond 5w by lower temps? Can it make up partly with 0w but provide C40 spec?

siberian

mrmichaelsankey

5w isn’t low enough for you. Have a look at the Castrol edge 0-40… Looks promising, -50c minimum temp on the fact sheet.

I stuck that in my my old M5 and it was top notch, got a gallon in the garage and tempted to shove it in the 911 and macan (Audi 2.9 TT engine) as it meets the required spec.

mrmichaelsankey

Everything else I’ve found is A40 as you’ve probably seen.

It sounds like the “oil man” knows his stuff and potentially might have to go down that route… or stump up for an import from somewhere which is ludicrous for our would of modern global trading.

siberian

Mobil1 0w-40 A40 is good for extreme low so not sure what Castrol would give if it's A40 as well. I suppose the x3 is tied to C40. Yes, he was very knowledgeable and took the time to explain rather than sell which was most appreciated.

BTW I run Mobil1 0w-40 on the 2020 Macan S with no problem, as well as my DD the 2008 V8 Touareg, used it in my 2015 RS5 and Olga my skid steer that sits under shed outside but connected to a block heater 4 hours prior to use when I need her. Mobil1 0w-40 works for where I live. If it wasn't for this C40 crap I wouldn't be wasting everyone's time.

Let me know if you find anything out, as other than the UK I haven't found this anywhere. Thanx

siberian

4carl

Motor oil Is like religion, everybody thinks theirs is the best and nobody can prove it. Carl

siberian

Amen. Just trying to see what makes sense given where I live.

So just being informed that a friend is flying down to Anchorage to pick up his 991 TT I asked him to see if he could carry back 10qts. And guess what? Dealer says they don't have any in stock only for the 991s. I'm therefore VERY interested to find out what they put in Cody's 992 when they did the courtesy service after his drive from PEC Atlanta to Alaska... unless they just ran out... hmmm...

siberian

siberian

So here's what I think I'll do. I believe, if what the tech at Liqui Moly told me and I understood correctly, adhering to the C40 spec is more important than the viscosity range I need as that parameter can be controlled whilst the former can't - meaning it either does or doesn't meet C40 spec. As to 0w or 5w here is what I'm thinking:

Given my DD is my V8 Touareg and we also have the wife's 2020 Macan S both of which run on vanilla Mobil1 0w-40, I think I will go with a 5w-40 and just limit winter driving of the 992 when temps are above -20F or additionally add a couple of cans of CERATEC just to be sure. However from the research I've done, it seems 5w-40 should be good in the -20F to 90F range. Given global warming we've not had real -60F weeks on end for years now and even last year we hardly had anything much below -30F.

Therefore I think if I don't drive the 992 on those real cold days, I will still be able to drive it in winter most of the time while ensuring the engine oil is C40 compliant.

Now, let's open the religious debate...

Motul 8100 X-Clean Gen2


or

Liqui Moly 4110

https://www.fcpeuro.com/products/5w4...qui-moly-22122

Both C40 compliant. Thoughts?

siberian

PS FWIW, Pelican Parts is much more expensive than FCPEuro for LiquMoly plus their shipping rates are not designed with me in mind.

lucycan

I think the Motul and LM are both great oils. Sleep well with either.

siberian

Thank you. Any thoughts on my logic allowing me to drive in winter given the non availability (outside dealers) of Mobil1 0w-40 x3?

siberian

ipse dixit

Don't overthink this.

It's just engine oil for **** sake