Jeep Liberty CRD Oil Analysis

[wwwKJJEEPcom]

This is a friend of mine who also has a CRD:

http://www.oillab.com/index.htm


Edit to add my results:

Miles on unit-27882
Miles on oil- 3282
Added- 0
(He was using Mobil 1 5W40)

Aluminum-24
Chromium-3
Iron-57
Copper-4
Lead-2
Tin-0
Moly-109
Nickel-0
Maganese-27
Silver-0
Titanium-0
Potassium-8
Boron-159
Silicon-14
Sodium-14
Calcium-2641
Magnesium-27
Phosphorus-1137
Zinc-1071
Barium-0

SUS Viscosity@100C- 12.9
Fuel Dilution%=0
Antifreeze=0%
Water=0%
Soot=31
Oxidation=9
Nitration=15

The lab noted that the Aluminum was out of normal range and it seems to run a little high to middle of where others have reported.

Any input on 1)Soot 2)Oxidation and 3)Nitration would be appreciated

 

[truav8r]

Isn't that iron a little high also, for only 3282 miles?

 

[wwwKJJEEPcom]

It would seem so but others have had 35-60 on a regualr basis. They do take a while to break in. I will have an analysis done fairly soon with Amsoil 3K HDD and will be interested to see the results.

 

[unDummy]

Was the previous oil the same? driving style?
Any fuel additives regularly used?

Looks good. Without a bunch of CRD UOAs, no conclusion can be drawn.

You'll need to contact the lab to see what type of scaling they use for soot/nitration/oxidation.

Since the OEM filter is a joke, I don't expect to see low soot numbers from this diesel. Soot will also add to wear.

IMO, the Jeep recommended OCI is nuts. I wouldn't want to run any oil in this engine for more then 7.5k without better filtration.

 

[wwwKJJEEPcom]

I run the Amsoil Ea034 oil filter and Series 3000 5W-30 HDD. I also have the EGR turned way down so soot should be very low on my UOA I hope.

 

[Steve S]

kinda pricey oil changes, 3283 miles using Mobil 1 oil .

 

[wwwKJJEEPcom]

He didn't change the oil...he pulled a sample thru the oil dipstick.

 

[Steve S]

Quote:

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He didn't change the oil...he pulled a sample thru the oil dipstick.

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Good.