Oil Analysis Comparisons

[Archive]

I'd like to see a thread comparing oil analysis on our trucks, so we can see how they're wearing under varying conditions, oil types, etc. So here's the results of my analysis:

I had my oil analysis done by a local shop that analyzes all the cities vehicles -- buses, trucks, etc. Here's my numbers from a 98. 5 ISB, 44000 miles on odo, PowerMaxed, K&N conical filter, 4" exhaust. 4,000 miles on the PB2000 15w40, 4,000 miles on the stratopore filter.

Wear Metals:
Aluminum 0
Chromium 0
Copper 0
Iron 27
Lead 6
Tin 0
Silicon 0
Potassium 0
Sodium 2

Physical Properties:
Water 0. 1
Oxidation 5. 9
Visc@100 14. 4
Glycol NotDetected
Fuel <0. 1
TBN 12. 8
SAE 45
Soot <0. 1

My read on this is the truck is still getting 'broke in' (Iron). That or a bearing is going (doubt it), one of the reasons I'd like to see some comparisons. Otherwise, I'm impressed with the numbers and think I'll change oil every 5/6,000 miles instead of every 3/4,000 miles.

[1/26/00] edited typo

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Big MAK
98. 5 ISB 5spd 4x4 Quad Cab 3500, 4" Exhaust elbow down, PowerMax1, dang near everything else
https://www.turbodieseltrucks.com



[This message has been edited by Mark Kitchell (edited 01-26-2000). ]

 

[Archive]

Why do some people change their oil in the Cummins every 3k to 4k miles? Our engines are only 359 c. i. We have twice the oil capacity than gasoline engines that are recommended to change every 3k miles. Unless you're driving the hell out it, change it at 7,500 miles. The RV ISB is recommended every 15k miles because it has a larger oil pan than the ISB in the Dodges. I think these quick lube stations have people paranoid about running oil longer than 4k miles. Just a thought...

-Michael

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'00 2500 RAM, RegCab, 4x2, Cummins, 6-spd, Driftwood/Agate...

 

[Archive]

1,598 miles on a new 3500. Original oil and filter.

Iron 34
Chromium <1
Nickel <1
Aluminum 3
Lead 3
Copper 28 *noted as high but typical for break-in
Tin <1
Silver <1
Titanium <1
Silicon 90 *noted as high but typical for break-in
Boron 11
Sodium 16
Potassium 12
Molybdenum <5
Phosphorus 1208
Zinc 1609
Calcium 3149
Barium 37
Magnesium 17
Antimony <30
Vanadium <1

Fuel <2. 0%
Total solids <. 5%
Water <. 05%
Vis. CS 100 degrees = 13. 3
Glycol negative

Mike
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If I had a sig, it would be here. #ad

 

[Archive]

I had 53,000 miles on my 1997 12valve, with the Banks Stinger Plus, Factory air box, with K&N air filter, Fleetguard 3552 oil filter and Premium Blue 2000. The sample was on an oil change after @7,000 miles (mostly highway @ 75-80 mph).

Iron 25
Chromium 2
Nickel 0
Manganese 0
Aluminum 4
Lead 1
Copper 1
Tin 2
Silver 0
Titanium 0
Silicon 7
Boron 35
Sodium 2
Molybdenum 0
Phosphorus 1041
Zinc 1239
Calcium 2973
Barium 0
Magnesium 338

SUS viscosity @210 deg F 75. 4
Flashpoint 420
Fuel <0. 5
antifreeze 0
water 0
insolubles 0. 5

comments: average, with low bearing wear
company: blackstone

Good thread. . Keep it coming.
Jack

 

[Archive]

Since everyone drains their oil at different mile amounts, the way to look at everything is to figure parts per million per mile or (ppmpm)EX; if you have iron at 27 ppm and it when you sampled it it had 5,000 miles on the oil then you would devide 5,000 into 27 which would give you a figure of 0. 0054
Doing it this way will give you a better understanding of the wear rates when different mileage is used.
Keep in mind that if a bypass filter is used it should have a lower wear number than if you just used a standard filter. This does not mean that you are getting a lower wear rate, it just means that you took more of the wear that happened out of the oil, to that the oil stayed in better condition.
To get a lower wear rate you must use a high quality oil.
Sincerely, Kevin Dinwiddie

 

[Archive]

With the performance enhancements the oil analysis doesn't look different then non-enhanced engines I've seen samples from -- but we need more posters here to tell for sure. I particularly want to watch this... the oil will tell us if the enhanced engine is wearing faster than the non-enhanced engine.

Agreed on the critique that my last oil change was pretty quick (low mileage). I was being really paranoid since the oil looked way black (I know, that doesn't mean anything), and ran a short drain interval. Thought I would have to ship the sample out of town then found this local shop to analyze it (referred by Cummins shop). In addition, with folks discussing leaking injectors and other paranoia creating incidents, particularly with performance enhancements, I was motivated to drain it at low mileage then get an analysis done. Since I am planning on taking a trip I wanted new oil in the box just in case it was bad (again, thinking I would have to send the sample out of town). But generally speaking, I do change oil way more often than needed. I have to see hard facts to sway me otherwise -- the analysis is the facts I need to convince me to lengthen the interval.

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Big MAK
98. 5 ISB 5spd 4x4 Quad Cab 3500, 4" Exhaust elbow down, PowerMax1, dang near everything else
https://www.turbodieseltrucks.com



[This message has been edited by Mark Kitchell (edited 01-26-2000). ]