Maybach 57s, 5k mi, Red Line 5W-20

[AEHaas]

Original Post:
2007 Maybach 57s AMG delivered 6/2007 with 125 miles on the odometer. I took a sample after driving 15 miles home from work with 2,000 miles on the clock. The car comes with a twin turbo 6.0 liter V12 (my old “regular” Maybach 57 had a 5.5 liter V12). It has 612 BHP and 738 ft lbs torque. Driving: spirited around town, some highway driving, maybe 10 percent.

This sample has the viscosity of a low 40, almost a 30 grade oil. This makes me feel comfortable using a 20 grade oil.

The regular Maybach 57 did spec. several 30 but mostly 40 grade oils. This engine only specs. all 40 grade oils. Note that the smaller engine was rev limited to 150 MPH whereas the AMG engine allows for 175 MPH. This is a big difference in oil heating in my book. Since I will have no oppurtunity to go over 100 MPH there are no reasons to go with the 40 grade oil.

Aug/2008 Update:
‘Dyson analysis of this Red Line 5W-20 with 5,000 miles on the oil and now 7,000 miles on the car. I put in RLI oil now, running the 0W-20 grade. I will get another Dyson analysis after having 5,000 miles on this RLI oil and a total of 12,000 miles on the car.

I used up the tires (with proper rotation) at 6,000 miles. I like to light them up when I can:

____New OEM ______Red Line__
_Unknown 2,000 mi__5,000___Miles on the oil
___125___2,000 mi__7,000___Miles on the car
................................................................................................................
Iron___________23__25
Chromium _____0___1
Nickel _________0___0
Aluminum _____22__19
lead __________0___3
Copper _______17__20
Tin ___________9__15
Silver _________0___0
Titanium ______0___0
Silicon ________19__20
Boron ________187__30
Sodium ________8___34
Potassium ______4___0
Molybdenum __ 88___885
Phosphorus ___927__1270
Zinc _________1079_1408
Calcium _____ 3086_2534
Barium ________1___5
Magnesium ____62__30
Antimony ______0___0
Vanadium ______0___1
Fuel %Vol _____neg__1.77
Abs Oxid ______NA___157
Abs Nitr _______NA___14
Wtr %vol ______neg__778KF
Vis CS 100C ___12.6__8.0
Vis CS 40C_____NA___50
Vic index______NA__131
SAE Grade ____40___20
Gly test _____neg___neg
TBN ______not done__2.8
TAN______not done__3.32
Soot________NA____0
Sulfate By Product_NA_100

Particles Counts:Only on first sample of the OEM oil:
>5__________33603
>10_________4138
>15_________228
>20_________83
>25_________48
>50_________11
>75_________5
>100________2
Ferrous debris__9, Particle Volume__6

aehaas

 

[buster]

Lot of break in wear. Al/Tn in particular. Should be interesting to see the RLI UOA.

 

[Steelhead]

would be interesting to know the OEM base oil makeup: GrpIII, GrpIV or GrpV.
if any top world engine and oil engineers know whether synthetic oils negatively affect engine breakin, the German Mercedes boys with their decades of world racing experience would know.


any seat of the pants or GPS acceleration difference between the OEM 40 and your stiff 20w even with the fact that the engine is still breaking in?

does the Maybach have a turbo cool down cycle it goes thru when shutting off or does one pull it straight into the garage hot from a 100 mph run and go straight to engine off.

 

[glennc]

Always a treat to see these UOAs running lighter-than-spec oils. Unfortunately it's hard to draw much information from the wear results at this point in break-in. I will be very interested to see how the RLI appears to compare however.

 

[pickled]

Looking forward to seeing this combination accumulate more miles. You will have to work on that 100mph issue...there must be a safe place (i.e. a track) for you to have some fun at.

 

[AEHaas]

With Fe, Sn, Si, and Al being used as additives in Red Line oils it complicated analysis without a professional as Terry Dyson. You must compare to VOA and even these have changed recently so what is the truth?

The conclusion is that this is a normal UOA, no worries about the low viscosity I have chosen. And it should look even better with some more break in and the RLI oil use.

I drove the first car in the US at Sebring in ? 2003 I think. That is what convinced me I needed to have one for myself.

aehaas

 

[buster]

I don't think RL is using Fe ad Al as additives though.

 

[AEHaas]

Check these out:

https://bobistheoilguy.com/forums/posts/1034572/

http://www.bobistheoilguy.com/forums/ubb...true#Post478474

 

[buster]

Thanks, not sure what to make of it. Wouldn't hurt to call Dave or Roy at RL and ask them just to confirm.

 

[Johnny]

I would liked to have seen two or three consecutive runs of the Red Line, then two or three consecutive runs of the RLI.

As always, thanks for sharing your test results with us.

 

[TeeDub]

What sort of oil pressure are you seeing (psi/1000 rpms), with the SAE 5w-20, after the engines fully warmed up???

Do you know the metallurgy of the main/rod bearings?

Is that Valet position still open?

 

[Steve S]

The engine is still really new and wearing in.

 

[AEHaas]

You would think the "sporty, drivers version" AMG Maybach would have an oil pressure and temperature gauge. You would be wrong. I have no reading of these critical values. All I know is that oil temps must be well below those of the same car driven at sustained high speeds on European super highways. Image the power needed to push a 6,100 pound car at a constant 175 MPH.

aehaas

 

[benjamming]

Can you use a scan tool to pull the temp & pressure readings from a few representative runs around town?

 

[AEHaas]

I have thought on and off as to possibly buying a scan tool but I never have. Part of the issue is which one to buy. I am sure some are much better than others and cost may not tell the story. Also, it would be nice if one worked on the Mac. I am open to suggestions.

Can they all read oil temperature and pressure? There is no doubt the Mercedes tools can but what about the others?

aehaas