Mobil 1 5W-30, 8673mi, GM Sub 5.3L 74,673mi

[bmholloway]

1st oil analysis on my used 2003 Suburban. This oil was changed and Mobil 1 Extended Performance was used. I have run a Amsoil bypass on my diesel VW and was thinking of adding one to this vehicle as well.

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Iron 14

Chromium 0

Nickel 0

Aluminum 1

Copper 18

Lead 10

Tin 0

Cadmium 0

Silver 0

Vanadium 0

Silicon 13

Sodium 48

Potassium 4

Titanium 7

Molybedenum 116

Antimony 1

Manganese 0

Lithium 0

Boron 55

Magnesium 19

Calcium 2467

Barium 1

Phosphorous 706

Zinc 830



Water
Visc (100C) 10.4 cST

Base Number 3.46 mg KOH/g

Oxidation 17

Nitration 27

 

[Artem]

Looks good. If a bypass is worth it to you, by all means... go for it!

It's a good lookin report. Is this regular M1?

 

[bmholloway]

yep, plain old M1 on this one, refilled with M1 Extended Performance

 

[ARCOgraphite]

This new oil looked like it would have gone 10K no problem. Did you do the 8000+ miles on a short time? I would expect the EP to show worse numbers/mile unless you extend the drain to at least 12K.

 

[addyguy]

Looks really good. 10k would be the sweet spot.

Gonna try 10k on the EP and see how it compares?

 

[bmholloway]

I will likely go to one year OCI, unless my wife exceeds 14k miles in one year.

 

[buster]

Do you know if you put the new formulation in? API SN.

 

[webfors]

Good report. I like the viscosity holding it's ground.

 

[bmholloway]

The new oil (M1 5W-30 EP) is indeed API SN.

 

[Jim Allen]

Originally Posted By: bmholloway
I will likely go to one year OCI, unless my wife exceeds 14k miles in one year.


That looks very possible, especially if you go with a bypass. Good report. What's the driving regime like (e.g. short hops, long hauls, etc.)

 

[bmholloway]

This is the family car. Trips to grocery store are short (6 mi roundtrip) and typically 2 per week at most. Otherwise, it goes 25-70 mile roundtrips and on vacations and typically mileage is around 500 miles every two weeks.

 

[bmholloway]

Just got my second oil analysis back from Oil Analyzers. As indicated in the subject, the oil is Mobil 1 Extended Performance 5W-30 and was not changed this time. I have not added the bypass filtration and still am up in the air as to its value in this application. Any feedback is greatly appreciated.

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total miles

74,673 86,062

miles on lube 8673 11,389

Iron 14 21

Chromium 0 1

Nickel 0 1

Aluminum 1 3

Copper 18 21

Lead 10 31

Tin 0 0

Cadmium 0 0

Silver 0 0

Vanadium 0 0

Silicon 13 14

Sodium 48 35

Potassium 4 1

Titanium 7 0

Molybedenum 116 92

Antimony 1 1

Manganese 0 0

Lithium 0 1

Boron 55 34

Magnesium 19 622

Calcium 2467 1259

Barium 1 0

Phosphorous 706 678

Zinc 830 800



Water
Visc (100C) 10.4 cST 9.6 cST

Base Number 3.46 mg KOH/g 3.22 mg KOH/g

Oxidation 17 17

Nitration 27 15
[/quote]

 

[buster]

Looks good. Na is a bit concerning. Where is that coming from?

Tbn is good. Notice it stay about the same from the 8k mile previous OCI.

 

[blmlozz]

PB went up pretty significantly, and visc is less than what I would like considering the EP was only run 2700 more miles. It's just bearly a 30W oil at 9.6.. but I suppose considering it's only 10.5 to start with that it's survived fairly nice overall..

TBN is nice too.

what sort of conditions was this run under?

 

[bmholloway]

The car is my wife's daily driver. See's predominately short trips of 3-12 miles (grocery store, park, playground, etc) and was used for a couple of longer trips over the past 10 months (Florida vacation, North Carolina hospital). We are in Douglasville, GA outside of Atlanta.

 

[blmlozz]

Sounds like it's held up very nicely in that case. I would say with my limited knowledge that this is a very nice UOA, and you should try 1-2K more next time even!