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#4724680 - 04/12/18 12:23 PM 2013 Dodge Ram Dually, w/6.7, what oil?
sasilverbullet Offline


Registered: 08/22/04
Posts: 1379
Loc: San Antonio, Texas
For a friend, did a search and couldn't find the answer...

2013 Dodge Ram Dually with the 6.7L cummins, he pulls a 40ft fifth wheel a lot!

What weight, type and oci would you guys recommend? Amsoil says a 5w-40. Oh, and he lives in New Jersey, but pulls all over the country...
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14 Honda Civic 4dr EX-L-M1 0W-20 & WIX XP
14 Honda Accord 4dr EX-L 4cyl-M1 0W-20 & WIX XP
02 Chevy 5.7L van-GTX HM 10W-40 & WIX filter

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#4724717 - 04/12/18 12:58 PM Re: 2013 Dodge Ram Dually, w/6.7, what oil? [Re: sasilverbullet]
Chris142 Offline


Registered: 06/05/03
Posts: 16534
Loc: Deplorable in apple valley, ca
Rotella 5w40
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02 Wrangler super-s 10w30
87 F250 proline 15w40
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Can am maveric edge 5w40
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#4724719 - 04/12/18 12:59 PM Re: 2013 Dodge Ram Dually, w/6.7, what oil? [Re: sasilverbullet]
AlaskaMike Offline


Registered: 05/28/10
Posts: 268
Loc: Alaska
If it were my truck for conventional oil it would be either Chevron Delo 400 or Rotella T 15w40. If I wanted synthetic it would be the 5w40 synthetic versions of the previous two brands. I'd be fine with Amsoil 5w40 as well.

For OCI, start with 5000 miles. If he wants to extend that, then lengthen as indicated by oil analysis.

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#4724735 - 04/12/18 01:18 PM Re: 2013 Dodge Ram Dually, w/6.7, what oil? [Re: sasilverbullet]
Dodgetracker Offline


Registered: 06/12/15
Posts: 28
Loc: KS
15w40 any brand that meets Cummins spec 20081 or 20086. Or any 5w40 or 10w30 that meets the same.
7500 OCI is what my manual states but I think newer trucks go 15000 or 6 months whichever happens first.
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2008 Dodge Ram 2500 4x4 6.7 CTD 68RFE.

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#4724742 - 04/12/18 01:35 PM Re: 2013 Dodge Ram Dually, w/6.7, what oil? [Re: sasilverbullet]
02SE Offline


Registered: 12/30/05
Posts: 2565
Loc: The Canyons
Per an ex-Cummins engineer who is a member here, I'm running Rotella 5w40 or 15w40, in my '17 Dually which is used to pull a heavy 45' 5th wheel toy hauler. The manufacturers suggested OCI is 15k or 6 months, whichever occurs first. For the foreseeable future, I'll be doing oil changes based on time.

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#4724793 - 04/12/18 02:26 PM Re: 2013 Dodge Ram Dually, w/6.7, what oil? [Re: sasilverbullet]
racin4ds Offline


Registered: 05/07/10
Posts: 812
Loc: Ocala, Florida
Isn't there only "one" approved or "suggested" oil for use in the Cummins engines?
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#4724838 - 04/12/18 02:59 PM Re: 2013 Dodge Ram Dually, w/6.7, what oil? [Re: sasilverbullet]
FermeLaPorte Offline


Registered: 07/25/17
Posts: 428
Loc: Texas (south)
Mobil Delvac
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#4724877 - 04/12/18 03:58 PM Re: 2013 Dodge Ram Dually, w/6.7, what oil? [Re: racin4ds]
bullwinkle Offline


Registered: 10/09/04
Posts: 7480
Loc: Cincinnati, OH, USA
Originally Posted By: racin4ds
Isn't there only "one" approved or "suggested" oil for use in the Cummins engines?

That would be Valvoline Premium Blue Extreme 5W40, another excellent choice. Pretty much any big name HDEO in 5W40, 15W40, or even 10W30 would work just fine. I'm a pretty big fan of Mobil Delvac 1 ESP (& older non-ESP) 5W40-but the fact I picked up a pretty big amount of it from AZ for $1/quart a couple years back factors in to that!
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06 Ram 3500 CTD 4X4(FG Venturi), 93 GMC C3500 6.2, 89 F-450 7.3, 98 XJ 4.0(XG8A), 05 xB(XG3600), 15 Transit 3.7, 03 Merc Grand Marquis 4.6 2V(XG2)

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#4724973 - 04/12/18 06:13 PM Re: 2013 Dodge Ram Dually, w/6.7, what oil? [Re: sasilverbullet]
BrianF Offline


Registered: 02/25/15
Posts: 515
Loc: Sask, Canada
I am running PetroCan Duron 10w30 semi synthetic in mine. CES 20086 approved.
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2006 Trailblazer LT. Castrol Edge with Fram Ultra.
2017 Ram 3500 SLT Megacab. Duron SHP 10w30 with LF16305.
1993 GMC 1500. It has oil and still runs

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#4725740 - 04/13/18 12:27 PM Re: 2013 Dodge Ram Dually, w/6.7, what oil? [Re: racin4ds]
InhalingBullets Offline


Registered: 08/07/12
Posts: 514
Loc: TEXAS
Originally Posted By: racin4ds
Isn't there only "one" approved or "suggested" oil for use in the Cummins engines?

It was Valvoline Premium BLue, but now in 2018 the owners manual says this:

Engine Oil Viscosity (SAE Grade)
In ambient temperatures above 0F (-18C), we recommend
you use SAE 15W-40 engine oil such as Mopar, Shell
Rotella and Shell Rimula that meets FCA Material Standard
MS-10902 and the API CK-4 engine oil category is required.
Products meeting Cummins CES 20081 may also be used.
The identification of these engine oils is typically located
on the back of the oil container.
In ambient temperatures below 0F (-18C), we recommend
you use SAE 5W-40 synthetic engine oil such as Mopar,
Shell Rotella and Shell Rimula that meets FCA Material
Standard MS-10902 and the API CK-4 engine oil category is
required.
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