M1 0W-40 from '04 Porsche Cayenne Turbo

Jeffrey Behr · Jan 16, 2004

Test performed by MTM/OilGuard. 10,817 miles on engine, 8781 on oil. Was broken in (to about 2000 miles) with Mobil DD 5w30. This batch was replaced with more M1 0W-40 before I switch to Red Line 5W-40 early this summer.

"Wear metals, ppm:
Alum 7
Chromium 2
Copper 0.15
Iron 10
Lead 9
Tin 0
Silicon 20 (A)
Potassium 14
Sodium 21
Moly 35

Physical properties:
Water 0.2
Oxidation 10.2
Visc @ 100dC 12.3
Glycol 0
Fuel 3.1
Nitration 8.9

All engine wear rates normal. Silicon most likely from source other than dirt, possibly engine sealant (gasket material) and/or oil additive. Trace level of fuel detected."

Interesting they mention gasket material--the intake-manifold gaskets were replaced just before this oil was installed. The oil's high-temp viscosity is 2 units short of Mobil's new-oil spec of 14.3, and it doesn't quite reach the bottom of the SAE-40 block on the chart, but I guess that's one reason I'm changing to RL.

theguru · Jan 16, 2004

What is the recommended grade for this engine? From what I have seen the Mobil1 oils tend to be on the thin side of quoted grade.

TR3-2001SE · Jan 16, 2004

This is a fairly good analysis for the miles. I would like to see lead lower but all other wear metals are very low. The oil has thinned out which it it known to do. I would switch to the 10w-30 but it may not meet the spec. you need. Red Line is suppose to be a great oil but I prefer mobil 1 or Amsoil.

buster · Jan 16, 2004

Nice report on a Turbo. RL should be more shear stable. The oil is now a high 30wt. almost 40wt. It would thicken up most likely in a few more thousand miles. Looks great though.

Jeffrey Behr · Jan 16, 2004

quote:

Originally posted by theguru:
What is the recommended grade for this engine?

In my mild temperatures, M1 in 0W-40, 5W-40, and 5W-50 are OK.

Thx to all for the observations. I know NOTHING about these things but what I read.

buster · Jan 16, 2004

Jeff, I think RL is an excellent choice, probably your best. Mobil will be releasing a SUV oil soon in a 5w-40 grade. This or Delvac 1 would be alternatives that should do a very nice job as well. Just a thought.

theguru · Jan 16, 2004

The Redline is a great oil, but does it meet the Porsche specs, not just grade?

Drew99GT · Jan 16, 2004

What was up with the intake manifold gaskets? If your Porsche blows intake gaskets, I don't feel so bad now about owning a GM vehicle

JohnBrowning · Jan 16, 2004

This UOA is a good UOA especialy for the millage and power output under forced induction!

Dreww99GT, Even if it was failure that is not that uncommon. All manufactures produce vechiles from time to time with a slight flaw that was not caught by quality. All companys includeing my precious Toyota make some lemons. The difference between companys is the total number of lemons per 1000 or 1000000?

Trust me I would just a vocal if TOyota ever disapointed me!

[ January 16, 2004, 10:33 PM: Message edited by: JohnBrowning ]

Jeffrey Behr · Jan 16, 2004

quote:

Originally posted by Drew99GT:
What was up with the intake manifold gaskets? If your Porsche blows intake gaskets, I don't feel so bad now about owning a GM vehicle

During the 1st month or so it started missing and got worse--to a single-cylinder 'hard' miss--over a few days. The dealer fixed it promptly and it's been fine since.

And no machine is perfect; I just expect the dealer and Porsche to make it right, quickly (and freely for the 1st 50K-miles).

Surprise · Jan 16, 2004

In my limited experience in using this lab I noticed that the viscosity is often a little thicker than what others might see. Check out my last oil report, I took two consecutive samples midstream and sent one to Oil Guard and the other sample to Blackstone. You can compare them, now the question is which lab is closest to the actual values?

My last lab report

Drew99GT · Jan 16, 2004

So it was just a bad vacuum leak, no internal coolent leakage?

Jeffrey Behr · Jan 16, 2004

quote:

Originally posted by Drew99GT:
So it was just a bad vacuum leak, no internal coolent leakage?

Yes.

[ January 17, 2004, 02:32 PM: Message edited by: Jeffrey Behr ]

Darryl · Jan 17, 2004

One question though Jeff, why the Station Wagon instead of the 911?

Darryl (NASCAR "motors" Rule!)

Loose In, Tight Off?
Drive It In deeper.

[ January 18, 2004, 01:00 AM: Message edited by: Darryl ]

Jeffrey Behr · Jan 18, 2004

quote:

Originally posted by Darryl:
One question though Jeff, why the Station Wagon instead of the 911?

We have a 2-car garage in which we keep 2 cars, one of which is my wife's. I'm a fotografer and need something that does well hauling 2 more people and their gear, into places no one would try to drive any kind of 911. I put lots of miles (and Arizona pin-striping [= scratches from brush and trees]) on a '95 Cherokee and a '99 Grandokee before this C-T, and it too now suffers from AZ pin-striping.

See the album at http://community.webshots.com/album/94072630QAdoQV .

When I win the big lottery I'll buy a Carrera GT (or if it's the medium lottery it'll be a Ford GT) and add to my garage.

[ January 18, 2004, 12:33 PM: Message edited by: Jeffrey Behr ]

buster · Mar 23, 2004

Almost 9k on this sample and the oil only dropped 2 cSts....Considering it's a 0w-40 makes it very impressive. Wear numbers are great. I've done a 180 on this oil. Not the first time, or the last.

[ March 23, 2004, 08:50 PM: Message edited by: buster ]

dkcase · Mar 23, 2004

Don't fail to go to Jeffrey Behr's post above and look at his pictures from Colorado.

Beautiful.

Motorbike · Mar 23, 2004

quote:

Originally posted by buster:
Almost 9k on this sample and the oil only dropped 2 cSts....Considering it's a 0w-40 makes it very impressive. Wear numbers are great. I've done a 180 on this oil. Not the first time, or the last.

Yeah that was the first run on this oil and almost all the moly was uptaken during this break-in period . Even at that the oil was not completely dead . If it had been used a second interval it would have done even better .

No dang wonder the factory wants this oil in their engines

Good stuff there .

Cary · Mar 23, 2004

With this good of a oil analysis, why are you changing oils? I love redline, but given Porsches recent problems with oil leaks, why give the dealer the opportunity to deny a claim for using a oil that is not Porsche Approved or API certified?

buster · Mar 24, 2004

I wouldn't switch either. These results are great and I don't think RL will be any better at all. Now if you were going to race it, I'd consider the RL.

M1 0W-40 from '04 Porsche Cayenne Turbo

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