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Dec 31, 2006 | 02:12 AM

Allen Hibbs

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Joined: Sep 2006

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From: Orange County, CA

Motor Oil

what oil is everybody running in there cummins?

Dec 31, 2006 | 02:14 AM

xtoyz17

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Joined: Nov 2006

Posts: 2,333

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From: Rochester, NY

Rotella 15w40.

Dec 31, 2006 | 04:47 AM

DrDiesel

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Joined: Dec 2006

Posts: 273

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From: Kalifornia

Valvoline Premium Blue. Since 1995. Never any problems. Best bang for the buck. Smells good too.

Dec 31, 2006 | 06:34 AM

Shovelhead

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From: Central VA

Valvoline Premium Blue in mine also.

Dec 31, 2006 | 06:35 AM

BEARHUNTER

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From: Well I thought I lived in America, but its looking more like france every day.

Quote:

Originally Posted by Shovelhead

Valvoline Premium Blue in mine also.

Same here..

Dec 31, 2006 | 06:37 AM

displacedtexan

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From: Place with no quail:(

Valvoline Premium Blue also.

Dec 31, 2006 | 07:09 AM

madhat

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Joined: Jun 2006

Posts: 14,983

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From: Jonesborough, TN

Rosmella. Fixin to start running synthitic.

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Dec 31, 2006 | 07:11 AM

dieselbeef

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Joined: Jan 2006

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From: myakka city fl

mobil delvac 1300

Dec 31, 2006 | 07:16 AM

Marine

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Joined: Aug 2001

Posts: 2,058

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From: Canuckistan

I have run everything from Super-Tech 15w-40 to Petro Canada Synthetic for the winter time.
Oddly enough, I got my best mileage with the Wal-Mart Super Tech 15w-40.
I mainly run Delo 15w-40.

Dec 31, 2006 | 07:23 AM

#10

RustyJC

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Joined: Apr 2002

Posts: 1,749

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From: Cypress, TX

Delo 400 15W-40.

Rusty

Dec 31, 2006 | 07:38 AM

#11

herb

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From: Battle Creek Michigan

Royal Purple 15-40

Dec 31, 2006 | 07:46 AM

#12

wannadiesel

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Joined: Mar 2003

Posts: 22,594

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From: New Holland, PA

Castrol Tection because it was on sale. Normally Delvac 1300s. The Castrol is a smelly oil, but not as strong as Rotella.

Dec 31, 2006 | 07:56 AM

#13

dssimecek

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Joined: Nov 2004

Posts: 520

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From: Cypress. Texas 77433

Since I sometimes travel around a bit, and have oil change done at a dealer, I get what ever they put in. Right now it is "Mopar" the service adviser sez tat is Exxon. With all the different oils that have been in the truck I have not noticed any great difference in performance or MPG.