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10w30 HDEO or 15w40, others. What's in your engine? #5270875 11/18/19 01:47 PM
Joined: Mar 2015
Posts: 14,007
53' Stude Offline OP
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Posts: 14,007
Good afternoon Bitogers smile

Before I hack another used filter open; thought I'd ask what you diesel vehicle owners are using for HDEO oil. My friends with the f250 and ram 2500 truck run 10w30 rotella or HK All Fleet 10w30 HDEO



Re: 10w30 HDEO or 15w40, others. What's in your engine? [Re: 53' Stude] #5270883 11/18/19 02:02 PM
Joined: Jan 2007
Posts: 1,150
BeerCan Online Content
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Posts: 1,150
I'm currently using Valvoline Premium Blue 8600es. 15w40 blend I think
I used the 5w40 Premium Blue Extreme but felt the cheaper 15w40 was just as good for the shorter changes light duty trucks call for.
I also used Lubrication Engineers 5w40 for years but decided it was to hard to buy and to expensive for my use.

I'll probably stick with the Valvoline because it goes on sale every once in awhile at TS and I buy a few cases.


2020 Porsche Cayenne
2017 Ford F250 6.7 PS
2016 Ford F150 3.5 EB
2016 Porsche 981 GTS
2015 Ford Mustang 2.3 EB
My car list is getting long smile
1994 Porsche 968 Coupe
1987 Porsche 944 Turbo
Re: 10w30 HDEO or 15w40, others. What's in your engine? [Re: 53' Stude] #5270890 11/18/19 02:08 PM
Joined: May 2016
Posts: 478
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Bighorn2500 Offline
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Typically Rotella T6 5W40 or Mobil Delvac 1 5W40, due to sales and rebates.


2012 Ram 2500 SLT 6.7L Cummins 4x4
2018 Dodge Durango GT 3.6L 4x4
Re: 10w30 HDEO or 15w40, others. What's in your engine? [Re: 53' Stude] #5270927 11/18/19 03:04 PM
Joined: Nov 2011
Posts: 1,928
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Audios Offline
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T5 10/30 in the tdi, since it only gets done once every 10 mos or so, I needed cold weather flow. Otherwise Id go 15/40 in warmer climates. Switching the GL to T6 in a few hundred miles.


2002 VW Golf TDI-T5 10/30
2007 Mercedes GL320 CDI- M1 0/30 ESP
2005 BMW M3 BMW-Twin Power 10/60
2003 BMW M5-M1 15/50
1998 BMW M3/4/5-M1 10/40
Re: 10w30 HDEO or 15w40, others. What's in your engine? [Re: 53' Stude] #5270947 11/18/19 03:26 PM
Joined: Aug 2019
Posts: 305
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tundraotto Offline
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Kubota tractor gets Delvac 1300 15W-40 or Delo XLE 15W-40 - whatever is on sale.

Re: 10w30 HDEO or 15w40, others. What's in your engine? [Re: tundraotto] #5270963 11/18/19 03:44 PM
Joined: Sep 2013
Posts: 11,464
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dlundblad Offline
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15w40 and 5w40 for my diesel tractors as well as my dads.

My new Kubota is approaching it’s initial 50 hour service and I’m not sure what oil to use. The manual is outdated and states 10w30, 15w40, SAE 20 and SAE 30 depending on the temperature. I’d prefer to use 5w40, but I don’t want any warranty drama should an issue arise. Will most likely run 10w30, but the darn thing has a 7 year warranty. Lol.


03 Jeep WJ 4.0 202k Edge 10w40 HM Fram XG16
02 Volvo S60 2.4T 195k M1 0w40 Mahle OX149D
97 Chvy Blazer 4.3 158k M1 EP 10w30 Supertech ST3980

Re: 10w30 HDEO or 15w40, others. What's in your engine? [Re: 53' Stude] #5270967 11/18/19 03:53 PM
Joined: Oct 2010
Posts: 4,991
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volk06 Offline
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During winter the loader tractor gets rotella T5 10w-30. The rest all gets plus50II or HK 15w-40

Re: 10w30 HDEO or 15w40, others. What's in your engine? [Re: 53' Stude] #5270977 11/18/19 04:06 PM
Joined: May 2007
Posts: 8,260
dnewton3 Offline
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dino 10w-30 Rotella exclusively.


The act of preventative maintenance, in and of itself, is FAR MORE important than brand/grade/base choices among lubes and filters.
- under maintaining something is akin to abuse/neglect; that can kill equipment by shortening the lifespan
- over maintaining something has never been proven to be anything but a waste of time and money
Re: 10w30 HDEO or 15w40, others. What's in your engine? [Re: dnewton3] #5271075 11/18/19 05:26 PM
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Posts: 1,100
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mattd Offline
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10w30 MC for the winter and MC 15w40 for the summer for my 6.0


2007 Ford F-350 4x4 6.0 PSD

ASE Master, L1
Re: 10w30 HDEO or 15w40, others. What's in your engine? [Re: 53' Stude] #5271087 11/18/19 05:36 PM
Joined: Oct 2012
Posts: 1,301
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jayg Offline
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Conoco Philips 5w40 Triton. From -50F to +85F year round.


2019 Toyota Prius E-AWD- TGMO 0w16
2017 Ram 1500 Ecodiesel- CP Triton ECT 5w40
1973 Datsun 240Z 10w30- VWC from '73
...and a bunch of old motorcycles




Re: 10w30 HDEO or 15w40, others. What's in your engine? [Re: 53' Stude] #5271131 11/18/19 06:13 PM
Joined: Oct 2004
Posts: 9,681
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bullwinkle Online Confused
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M1 Delvac 1/ESP 5W40 in the Cummins Ram (so it will start unaided below freezing), T5 10W30 in the GMC, Mobil Delvac 1300 15W40 in the F-450 (leaks thinner oils really fast from the oil cooler & rear main). Finally ran out of the AZ closeout 99 cent/gallon Delo 400 SAE 30 gallons, used all FORTY of the ones I had!


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), 18 Transit 3.7, 03 Merc Grand Marquis 4.6 2V(XG2)
Re: 10w30 HDEO or 15w40, others. What's in your engine? [Re: 53' Stude] #5271194 11/18/19 07:12 PM
Joined: Dec 2016
Posts: 82
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379KITTY Offline
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Kubota tractor 5w40 Delvac, Peterbilt w/ 3406E Cat 15w-40, Prevost coach w/ Series 60 12.7 (and 20kw Kubota generator) 15w-40. Delvac, Delo or Rotella all good stuff.

Re: 10w30 HDEO or 15w40, others. What's in your engine? [Re: 53' Stude] #5271242 11/18/19 07:54 PM
Joined: Nov 2010
Posts: 359
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austinlunsford Offline
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Delvac 1 ESP 5W40 in my 7.3 PSD


1997 F250 HD 7.3: Delvac 5W-40
2002 F150: M1HM 0W-20
2016 Renegade: Valvoline Modern Engine 0W-20
Re: 10w30 HDEO or 15w40, others. What's in your engine? [Re: 379KITTY] #5271263 11/18/19 08:22 PM
Joined: Sep 2010
Posts: 10,890
4WD Online Confused
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That CAT oil is Mobil as well … over a billion gallons and counting

Re: 10w30 HDEO or 15w40, others. What's in your engine? [Re: 53' Stude] #5271272 11/18/19 08:31 PM
Joined: Mar 2018
Posts: 45
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Roost426 Offline
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15w-40 in the old 6.9 idi and 12v cummins cool


1990 Dodge W250 5.9 Cummins - VPB 15W-40,MO-285

1986 Ford F350 6.9 IDI - ST15W-40,MC FL1995

1987 Jeep Comanche 4.0L - Mobile Super 5K HM10W-40,Fram TG8A

1993 Ford Ranger 2.3L - PP10w-30,Fram FPS8A
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