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Old 08-20-2011, 05:29 AM   #1
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What oil do you run in your Duramax?

Hat oil do you use in your Duramax, how many miles are on it and what year is it?

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Old 08-20-2011, 02:02 PM   #2
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Shell Rotella T 15w40 2011 GMC 3500HD DRW 9200mi

Jimmy & Tre
Katy, TX
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Old 08-22-2011, 02:06 PM   #3
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Same here- Rotella T 15w40. 2009 GMC 2500-HD. 20k miles. Used the same oil in the 1996 Ford F-250 HD Powerstroke I had before the GMC. It had 133k miles when I traded it in.
2009 GMC Sierra 2500HD | Crew Cab | Standard Box | 4WD | Duramax/Allison
2000 Jayco Eagle 266 | FBS | TT
1986 Coleman Laramie pop-up -- Still in the family!!!
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Old 08-22-2011, 05:20 PM   #4
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Chevron Delo 400 15w40 in all my diesels; from the pickup to my class 8 trucks, and all off road equipment. 350 hr. on off road equipt.; and 8 to 10,000 mile intervals with on road trucks.
Rod & DeeDee Wise

04 Everest 343L, 07 Chevy 3500 SRW,4x4,D/A,ext.cab
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Old 08-22-2011, 08:10 PM   #5
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I run Shell 15w40 synthetic in the summer and 5w40 synthetic in the winter for easier starting.
My truck is a 2004 Duramax with 106,000 miles.

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Old 08-22-2011, 09:39 PM   #6
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Used Shell Rotella 5/40 syn. T6 from the getgo. 2005 C5500 Kodiak 117,000 miles.

"Happy Trails"
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Old 08-24-2011, 10:22 PM   #7
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Mobil 1 synthetic for 05 duramax with 52000 miles.
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Old 09-05-2011, 07:53 AM   #8
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I use Rotella also 15-40W and got 77K miles on my 06 Chevy. I change it every 5K miles.
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Old 09-09-2011, 05:04 PM   #9
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Rotella T in an 07 CC dually, change it when the DIC says to change it.
2014 American Eagle 45T
DD 13, 500 HP
Pulling a Honda CRV
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Old 09-11-2011, 09:11 AM   #10
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rotella 15 w40 58000 miles change 5k 6.6 lly 04
safe travles bob,linda & missy
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Old 09-22-2011, 10:30 AM   #11
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On my 2003 GMC D-Max I use Delo 400 15-40wt, change at 3000 miles.
It has 82k now and was used for towing my toyhauler with RZR and two Sportsmans across the bed. No toyhauler now but it still has the Sportsmans to play with.
Our new to us 2007 Jayco Seneca 34SS with the D-Max will get the same treatment, it only has 13,500 miles and is not even broken in yet.
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Old 09-28-2011, 10:30 PM   #12
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Pennzoil 15-40...67k miles...04 CC dually 4wd , bought new
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Old 11-07-2011, 07:48 PM   #13
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I have a 2003 with 96,000 miles; I use either Delvac or Castrol every 6,000 miles. No oil consumption between changes.

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Old 11-12-2011, 12:51 AM   #14
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Rotella T 15w 40. 2003 with 103000 miles. Change it every 3500 miles and she burns right at 1/2 quart between changes.

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