Well I have been going about 6000 miles on an oil change with Rotella 5W40 synthetic. What are the chances that someone has had the same oil analyzed and what was the results? Also what do most of you use for your change interval? thanks.

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-05 Dark Khaki Limited CRD. GDE ECO tune. In-tank lift pump, Transgo doo doo kit, B&M trans cooler, replaced trans solenoid pack and filters, Newer Michelin tires, Timing belt with all related parts replaced at 110,000miles.

I had mine analyzed at that mileage and the results were great. I run 10k now.

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05CRD: GDE Hot ECU & TCM tunes, Provent, Cat filter, Facet lift pump, TransGo kit, Florida TC, Samcos, stainless brake lines, HDS thermostat, Renegade light bar,
Bilstein adjustables, Al's Gen 4.5 Arms, 235/85-16 Duratracs, DTT rear, Elocker front, EVIC+TPMS, Turbo timer, McNally pillar gauges, Weeks Stage II kit.

I've never had my oil checked. But I've had two TDIs and driven over 100k each and used the recommended changes of 10K with Rotella and neither ever needed a drop between changes.

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Atlantic Blue 06 CRD Limited (his)
Joined by a 2000 XJ Classic (hers)

I've used Mobile 0w40 for all changes since new, and I shoot for 6-9k for my changes. Since my GDE tune, my oil is much cleaner. I'm still going strong at 89k The engine sounds smooth and there have been no leaks other than the turbo hoses.

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2005 Black KJ Sport CRD,
GDE Full Torque ECO TUNE, GDE Transmission ECO Tune,
Samco British Racing Green Hoses
Build Date 1/05
200k miles.
Original Owner

thanks, I plan on getting the oil checked out soon but just wanted to see what some other are doing. I think I'll stick with the 6k for now.

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-05 Dark Khaki Limited CRD. GDE ECO tune. In-tank lift pump, Transgo doo doo kit, B&M trans cooler, replaced trans solenoid pack and filters, Newer Michelin tires, Timing belt with all related parts replaced at 110,000miles.

X2, after 30 years of driving and maintaining vehicles, I never had an oil analysis done. I could buy alot of other things for $30, including a DIY oil change. Maybe when I buy a locomotive, or a ship where it costs $100s or $1000s of dollars to do an oil change, I will give the analysis a try?

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20 year owner of Libby CRD!
2006 LTD Bright Silver loaded with all the needed mods, CCV intact.
Equipped with HDS thermostat, plenty of heat, faster warm-ups, increased fuel mileage.

A former member here showed me his oil analysis with Rotella after 10,000 miles and it looked perfect.

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2005 Stone White KJ Limited CRD 4x4
Off-Road Pkg
Trac-Lok
Emu 790s/948s
Skyjacker H7088s rear/Bilsteins front
15x7 Black Rock Lobos/31x10.50 Firestones
GDE HOT Tune + TCM Tune
Euro TC
CB radio
Thrush Turbo muffler
AEM DryFlow filter

Here you go:

viewtopic.php?f=5&t=4582&p=42090&hilit=oil+analysis#p42090

My UOA is on there. Rotella at 10K intervals.

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HERS:'16 WK2 Limited EcoDiesel - GDE hot
HIS: '06 Liberty CRD - EHM , GDE eco, Brite Box, Stanadyne FM100, Cummins lift pump, OME lift
'06 Dodge/Cummins - Play truck; a couple of fans, a proper cam shaft, and man handled electrons by EFILive 500/900
'01 Dodge/Cummins - Work truck; Lots of mods