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Geez. Have you considered using a zinc additive to help with more lubrication? After the increased reports we have been seeing over the years I am considering using it in my CTT. Thankfully it rarely sees temps below 20F. I already have a case of the additive for my classic vehicles that require it for their top ends.
Look into Driven DT40 as it has very high zinc and Phosphorous levels (over 1,000 ppm in my UOAs and that's after 4,000-5,000 miles). You won't find these levels in any Porsche A40 approved oil (especially tge Zinc) because they focus on emissions, have to provide an extended term warranty (maybe 10 years) on any emissions related components, and the higher ZDDP levels can damage cats sooner, which Porsche would then have to pay for. Personally, I'd prefer to protect my engine and sacrifice my cats, but that's a different financial equation for me vs for Porsche.
Been using DT40 in both my 997s and my Cayenne and DT50 in my 914 and 928 for years now. Best UOA reports I've had on any if them. Also, notice how much less acidic (TBN number higher tgan TAN number) the DT40 gets compared to the Motul
I'm not a big fan of introducing other addatives into the oil as it's hard to know compatibility between the addative and the oils addative package - better to find an oil with the content you need and leave it pure than add something additional to it.
Here's a report from one of my 997s comparing A40 approved Motul 8100 xcess with DT40
I use MOTUL 300V 5W-40 and my intervals are under 10k km (6k mls). And I have just a set of "secondary" racing 100 cell cats, downpipes are catless...
Nevertheless, since the news of evident scoring, I added two bottles of local ceratec-like product (metabond) and the engine has quieted down quite a bit. It has big amounts of zinc and also some ceramics bla bla that helps fill out scratches etc. I didn't wxpect anything, maybe a little more longetivity before this engine seizes for good.
Look into Driven DT40 as it has very high zinc and Phosphorous levels (over 1,000 ppm in my UOAs and that's after 4,000-5,000 miles). You won't find these levels in any Porsche A40 approved oil (especially tge Zinc) because they focus on emissions, have to provide an extended term warranty (maybe 10 years) on any emissions related components, and the higher ZDDP levels can damage cats sooner, which Porsche would then have to pay for. Personally, I'd prefer to protect my engine and sacrifice my cats, but that's a different financial equation for me vs for Porsche.
I think my 2004 S is Porsche spec'ed to use Mobil1 0W-40. That's what I use, and it has >1000 ppm in both P and Zn, as confirmed in both the Mobil spec, and in my oil analysis report.
I think my 2004 S is Porsche spec'ed to use Mobil1 0W-40. That's what I use, and it has >1000 ppm in both P and Zn, as confirmed in both the Mobil spec, and in my oil analysis report.
M1 0W/40 European Formula does. The others M1s in that weight do not.
Look into Driven DT40 as it has very high zinc and Phosphorous levels (over 1,000 ppm in my UOAs and that's after 4,000-5,000 miles). You won't find these levels in any Porsche A40 approved oil (especially tge Zinc) because they focus on emissions, have to provide an extended term warranty (maybe 10 years) on any emissions related components, and the higher ZDDP levels can damage cats sooner, which Porsche would then have to pay for. Personally, I'd prefer to protect my engine and sacrifice my cats, but that's a different financial equation for me vs for Porsche.
Been using DT40 in both my 997s and my Cayenne and DT50 in my 914 and 928 for years now. Best UOA reports I've had on any if them. Also, notice how much less acidic (TBN number higher tgan TAN number) the DT40 gets compared to the Motul
I'm not a big fan of introducing other addatives into the oil as it's hard to know compatibility between the addative and the oils addative package - better to find an oil with the content you need and leave it pure than add something additional to it.
Here's a report from one of my 997s comparing A40 approved Motul 8100 xcess with DT40
Thanks for posting this. As you mentioned, and I want to make this clear, the DT50 and DT40 are NOT Porsche approves lubricants. I mention this because the Porsche A40 oil profile, along with with others that this oil approved for like BMW, MB, VW etc. You have a very limited window with what you can do with the formulation as many factors are in play- emissions, emission system protection, fuel mileage, long drain intervals all require a different set of challenges vs a aftermarket "performance" oils like the DT oils. It impacts the formulation greatly. With that being said, the 8100 X-cess performs admirably vs the DT oils while also maintaining the Porsche A40 approval.
As the OP mentioned, our 300V Power 5W40 or 300V Competion 15W50 is part our motorsport/performance oil line (300V range) with NO factory approvals and would be I guess, a more fair comparison. -Nick
M1 0W/40 European Formula does. The others M1s in that weight do not.
Sure, so you're confirming it was not correct when you said,
Originally Posted by Petza914
...very high zinc and Phosphorous levels (over 1,000 ppm in my UOAs and that's after 4,000-5,000 miles). You won't find these levels in any Porsche A40 approved oil (especially tge Zinc)...
that's not right? This is a real question. Am I missing something?
I only know about this one oil, because it's the one in my engine. Could it be that many others do have >1k ppm Zn and P, and you were just given bad info?
I know the whole topic of engine oil is full of controversy, but simple ppm numbers seems like it should be straightforward.
Sure, so you're confirming it was not correct when you said,
that's not right? This is a real question. Am I missing something?
I only know about this one oil, because it's the one in my engine. Could it be that many others do have >1k ppm Zn and P, and you were just given bad info?
I know the whole topic of engine oil is full of controversy, but simple ppm numbers seems like it should be straightforward.
Over 1,000 pm is the absolute minimum. More is better, especially with Zinc, like 1,200 ppm. See the UOA I uploaded.
I wasn't "given" any info. These #s were based on about 25 UOAs numbers from my own personal UOA reports on different lubricants including Pennzoil Rotella 20W/50, M1 Turbo Diesel Truck 5W/40, M1 0W/40, M1 15/50 Extended Perfornance, M1 15/50 regular, Driven DT40, & Driven DT50.
Here's a spec sheet that shows all the M1 oils at the time it was downloaded. The Turbo Diesel Truck looks like a good candidate, but the shear properties aren't very good and shows significant breakdown of the addative package and the viscosity by a full weight grade in as few as 4,000 miles ,so its not just ZDDP numbers, you also have to look at other parts if the UOA too, like TAN vs TBN, flashpoint, viscosity at the 2 reference temps, etc
None of these oils had UOA reports as good as the Driven ones.
my indy discovered that one of the hoses at the top positioned large T pretty much exploded... it was most probably ripped just a little bit while fastening the clamp and let go after 5 years. Metal Ts are intact
I see what you did there.
Well, if it's gonna be something, at least it's cheap and easy to get to.
Got her up to 270kph today, if I didn't have ears, the top of my head would fall off and then bam, this again. Looks like the cooland reservoir is leaking. And my patience as well.
10-07-2018, 10:27 AM
