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5.9 Liter CR Dodge Cummins 03-07 Discussion of 5.9 Liter Dodge Cummins Diesels with Common Rail Injection

As the title says, I'd like some opinions of different oils and filters. I'm currently running Rotella because it was in the truck when I bought it. I'd really like to hear your opinions and stories of your experiences. Thanks in advance!... JOIN NOW TO REMOVE TRACER

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Old 12-04-2009, 09:25 PM
darkhorse06's Avatar
Diesel Fan

Default Oil Recommendations

As the title says, I'd like some opinions of different oils and filters. I'm currently running Rotella because it was in the truck when I bought it. I'd really like to hear your opinions and stories of your experiences. Thanks in advance!

darkhorse06's Sig:07 MegaCab 2500HD 4x4 Edge Juice w/ Attitude (Hot unlocked), Magnaflow muffler, Ultra Lightning 17x9.5 wheels wrapped in 285 Discoverer STT's... CAI to come....
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Old 12-04-2009, 10:38 PM
BigRedFireTruck's Avatar
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most everyone is going to say use Amsoil. for engine trans
I'm using Valvoline 15w40 for engine and Cummins engine oil filter. only because its free to me
if i had to pay i'd probly use the same.
I used to use Fram filter but not anymore the Crimp leaked on a oil filter i had on my truck once and never used it again. I guess that could happen to any filter maker. But since cummins filter is free i use it

I also use Valvoline synthetic ATF+4 trans oil. Again Free to me so.

BigRedFireTruck's Sig:Dodge Ram 3500 4X4 5.9 Cummins EXTREME: This engine tune will yield up to 120 extra horsepower. Pyrometer and boost gauges are highly recommended while using this tune. , gauges, Bully Dog, Stock exhaust muffler delete pipe, K&N drop in, vise grip boost fooler.
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Old 12-04-2009, 10:46 PM
Meralain's Avatar
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I run Rotella and WIX filters, and have for 170K without any problems. Tranny and Rear are running Mopar fluids, changed at recommended times.

Meralain's Sig:2001 Dodge 2500 Quad Cab, 2x4, 5 speed manual, Edge Comp, K&N High Performance air intake/filter, FASS fuel system. Pyro, Boost, Oil Temp, Trans Temp, Rear Axle Temp Gauges, High Idle Fooler, Pioneer CD Player, 10 inch Kicker powered by a Rockford Fosgate 250 watt amp. Rockford Fosgate speakers in the doors, 4" turbo back with an aero turbine muffler.
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Old 12-04-2009, 11:00 PM
12valve801's Avatar
Diesel Enthusiast


i run cummins approved valvoline. and a guy i know that works for UTA the transit system in Utah. he said thats the only thing they run in the 5.9 and 6.7 cummins busses that drive around all day everyday ..

also if your pocketbook can handle it royal purple is great but for $130 a change i think i'll be fine with the valvoline

12valve801's Sig:98' 12 valve Cummins. #100 fuel plate ff , BHAF, starwheel cranked, egr delete, tc lockout switch, A pillar glowshift gauges egt, trans, boost, Exhaust 4'' Aero Turbine muffler to 5 in mitre cut stack. billet sd torque converter, SDX 5X0.014, saving for a turblow
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Old 12-04-2009, 11:22 PM
Shea@L&N Performance's Avatar


We have always used Valvoline blue without any problems. AFE ProGuard filters are what we also recommend
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Old 12-04-2009, 11:26 PM
Site Sponsor - Mighty Diesel


i am running royal purple in my 08 cummins and afe oil filter
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Old 12-05-2009, 05:35 AM
Authorized Amsoil Dealer


I run the AMSOIL of course. Kinda depends on what you want out of your oil. Are you good with changing it at OEM intervals or are you interested in stretching it out a bit? I currently have 24000 miles on my oil. Just got an OA back yesterday. All is still ok.
Synthetics have their advantages but they come a little price. That price can be negated if used how they can be.
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Old 12-05-2009, 12:28 PM
darkhorse06's Avatar
Diesel Fan


Thanks folks! Heath, I'll be giving you a call in the near future. I have some things I would like to discuss with you.
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Old 12-05-2009, 11:27 PM
wardvwracer's Avatar
Diesel Fan


I now run Valvoline 15w/40 Cummins oil and add two bottles of ZDDP with every oil change. I run WIX oil filters.

I used to use Rotella until they changed their formula reducing the Zinc. The '07 and up engines are fine running the newer oils but the 06 and earlier engines need the old formulas with the higher zinc levels. The newer oils comply with new government standards to help with emissions.

I've long been a fan of Valvoline oils, and was intrigued by their new formula that is specific to Cummins engines. To ensure that I'm getting sufficent zinc to protect camshaft and lifters I add the ZDDP.

wardvwracer's Sig:David Ward
2005 Dodge Ram 3500 Big Horn Edition
5.9L Cummins, 4x4 Dually
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Old 12-06-2009, 11:11 AM
firefighter56's Avatar
Diesel Fan


If you read closely on the Valvoline bottle it is specifically for the ISM and ISX Cummins, no mention of the ISB engine that is in our trucks.

firefighter56's Sig:2006 Megacab 2500 w/bullydog triple Crazy Larry and outlook, firestone bag kit w/compressor and full DTT transmission
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