RLI 5w40, 6011 mls, 07 MS6 (DI Turbo)

[Nederlander75]

From left to right Factory Fill, MC 5w30 GC 0w30, Shell Rotella T Syn 5w40, Amsoil Euro 5w40, Bruce Blend 5w40, Mobil 1 Turbo Diesel Truck, Mobil 1 Turbo Diesel Truck, and RLI 5w40HDx2

Last 3 OCIs have been done by Dyson.

Miles on Sample 1274 1750 4211 1376 4512 2936 3319 4051 4362
Iron 14 10 16 8 13 16 13 9 17 28
Chrom 0 0 1 0 0 1 0 1 1 2
Lead 0 0 0 0 0 0 0 1 1 2
Copper 187 75 114 40 13 6 4 4 98 109 (part of add pack, usually around 200 in VOA)
Tin 0 5 0 0 1 1 0 0 0 0
Alum 5 6 6 0 3 2 4 2 3 4
Nickel 0 0 0 0 0 0 0 0 0 0
Silver 0 0 0 0 0 0 0 0 0 0
Sil 59 19 10 5 3 3 4 3 3
Boron 6 154 28 5 52 18 47 36 5 1
Sodium 0 0 0 3 5 11 7 13 20 20
Magni 19 13 473 94 20 9 606 577 117 33
Calc 1706 2027 1931 3328 1843 1730 1282 1000 2726 2780
Barium 0 0 0 0 0 85 15 1 0 0
Phos 944 935 1006 1425 753 1428 1008 1013 1390 1399
Zinc 1044 1050 1115 1454 948 875 1102 1043 1600 1587
Moly 100 48 9 2 0 1 2 3 0 0
Titan 0 0 0 0 0 0 0 0 0 0
Van 0 0 0 0 0 0 0 0 0 0
Potas 0 0 0 0 2 2 1 1 0 0
Antim 0 0 0 0 2 2 0 0 111 162
Fuel% Visc @100c cst 9.06 8.59 10.87 12.8 11.73 11.68 11.9 12.8 13.2 12.4
Water% NA NA NA Coolant NO NO NO NO NO Soot N/A N/A N/A TBN 4.84 5.14 6.04 9.48 3.25 4.79 3.83 6.1 7.4 4.2

Nitr N/A N/A N/A 15 NA 19 11 12 12
Oxid N/A N/A N/A 11 NA 20 20 138 157
Flash 380 260 260) M1, RLI, RLI
TAN 3.24 NOT DETECTABLE DUE TO COLOR OF OIL AGAIN
VI 166 189 178 M1, RLI, RLI

Car is now at 35K miles. This OCI saw mostly highway with avg RPMS around 4K, lots of heat hoping to keep things cleaner. Pure 1 oil filter and K&N drop in air filter (nasty cotton filters right?)

 

[Steve S]

Wow are you spending $$$ on the oil!!!

 

[21Rouge]

So based on all these UOAs which oil replaced this most recent run of RLI 5W40?

 

[JAG]

Any idea why the iron wear rate increased so much compared to the previous UOA?

What's up with the color of the RLI making the TAN unmeasurable?

 

[Nederlander75]

JAG, the color is suspected to be influenced by continued cleaning and fuels degredation/alcohol from COs required ethonol. No idea why the FE is up beyond the harder driving than usual. Could also be soot influenced wear if you notice that uptick. We are keeping an eye on it and making adjustments to compensate. I will post the next UOA in 5K so we will see how that all works.

Rouge, I have refilled with another run of RLI 5w40 in at the moment with another Pure1 oil filter. I will sample at 5K OCI and decide from there how to proceed on my next fill or extended OCI. I have just enough of this batch to get a VOA and am giving that consideration, but will see how the next UOA is before justifying a VOA expense. I also have another sample I took to run another lab para to Dyson and I may go this route for the VOA. This last part to possibly go with interim analysis.

 

[Tom NJ]

Originally Posted By: JAG
What's up with the color of the RLI making the TAN unmeasurable?


Color does not affect a true TAN by ASTM D-664, a potentiometric titration, but it will affect an Acid Value by ASTM D-974, which is a colormetric titration. Not sure what method they are using.

Tom NJ

 

[JAG]

Thanks Nederlander75 and Tom NJ.