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5w40 needed for a 6.0... Yup another thread #4479718
08/05/17 09:40 AM
08/05/17 09:40 AM
Joined: Oct 2009
Posts: 429
Balto, MD
NattyBoh Offline OP
NattyBoh  Offline OP
Joined: Oct 2009
Posts: 429
Balto, MD
So like many, what exactly is going on here with Ford and the specs. My old 6.0 is young at 74k miles. I used my last bit of Delvac ESP 5W40.

What should I go with? I've only seen a list of approved 10w30s on here, nothing on 5w40s.

Suggestions?

Re: 5w40 needed for a 6.0... Yup another thread [Re: NattyBoh] #4479724
08/05/17 09:47 AM
08/05/17 09:47 AM
Joined: Mar 2010
Posts: 5,356
Iowa
The_Eric Offline
The_Eric  Offline
Joined: Mar 2010
Posts: 5,356
Iowa
10w-30


2005 Lincoln Aviator 4.6 DOHC
2000 Honda Accord 2.3
2001 Hyundai Elantra 2.0
1979 Ford F-150 351M
Re: 5w40 needed for a 6.0... Yup another thread [Re: NattyBoh] #4479734
08/05/17 09:56 AM
08/05/17 09:56 AM
Joined: Jul 2017
Posts: 542
Texas (south)
FermeLaPorte Offline
FermeLaPorte  Offline
Joined: Jul 2017
Posts: 542
Texas (south)
5w40 sounds good enough. I'll continue using it


Always Mobil 1
2014 1.6L Nissan Versa Sedan, 5 spd, 5k OCI.
2011 3.5L Chevrolet Impala, Automatic, 5k OCI.
Re: 5w40 needed for a 6.0... Yup another thread [Re: NattyBoh] #4479742
08/05/17 10:08 AM
08/05/17 10:08 AM
Joined: Oct 2009
Posts: 429
Balto, MD
NattyBoh Offline OP
NattyBoh  Offline OP
Joined: Oct 2009
Posts: 429
Balto, MD
What about brands?

Re: 5w40 needed for a 6.0... Yup another thread [Re: NattyBoh] #4479752
08/05/17 10:22 AM
08/05/17 10:22 AM
Joined: Jul 2017
Posts: 542
Texas (south)
FermeLaPorte Offline
FermeLaPorte  Offline
Joined: Jul 2017
Posts: 542
Texas (south)
Mobil 1 is a really good one, so you've been doing good using their Delvac. Any other major brand is alright to use. I personally trust in Mobil (american owned, unlike SOPUS); of course that's like my opinion, man

Last edited by FermeLaPorte; 08/05/17 10:23 AM.

Always Mobil 1
2014 1.6L Nissan Versa Sedan, 5 spd, 5k OCI.
2011 3.5L Chevrolet Impala, Automatic, 5k OCI.
Re: 5w40 needed for a 6.0... Yup another thread [Re: NattyBoh] #4479762
08/05/17 10:31 AM
08/05/17 10:31 AM
Joined: Feb 2015
Posts: 710
Sask, Canada
BrianF Offline
BrianF  Offline
Joined: Feb 2015
Posts: 710
Sask, Canada
I think 10w30 was shown to be a fantastic oil for this engine. Find a cheap conventional or semi synthetic that will play nice with your climate.


2006 Trailblazer LT. Castrol Edge with Fram Ultra.
2017 Ram 3500 SLT Megacab. Duron SHP 10w30 with Hastings LF608.
1993 GMC 1500. It has oil and still runs
Re: 5w40 needed for a 6.0... Yup another thread [Re: NattyBoh] #4479778
08/05/17 10:43 AM
08/05/17 10:43 AM
Joined: Dec 2016
Posts: 6,259
Waco, TX
Linctex Offline
Linctex  Offline
Joined: Dec 2016
Posts: 6,259
Waco, TX
Originally Posted By: NattyBoh
So like many, what exactly is going on here with Ford and the specs.


You mean, with the new CK oils not being approved?


"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."
Re: 5w40 needed for a 6.0... Yup another thread [Re: NattyBoh] #4479864
08/05/17 12:08 PM
08/05/17 12:08 PM
Joined: Oct 2009
Posts: 429
Balto, MD
NattyBoh Offline OP
NattyBoh  Offline OP
Joined: Oct 2009
Posts: 429
Balto, MD
Yes. What's going on with the approvals of the new oil in the new powerstrokes and the old ones like my 6.0. The last document I saw said no backwards or forwards compatibility until further notice.

Re: 5w40 needed for a 6.0... Yup another thread [Re: NattyBoh] #4479889
08/05/17 12:26 PM
08/05/17 12:26 PM
Joined: Apr 2009
Posts: 1,288
oh
roadrunner1 Offline
roadrunner1  Offline
Joined: Apr 2009
Posts: 1,288
oh
Originally Posted By: NattyBoh
Yes. What's going on with the approvals of the new oil in the new powerstrokes and the old ones like my 6.0. The last document I saw said no backwards or forwards compatibility until further notice.


I know you've heard this before, John Deere Plus 50 II 10w-30. I just picked up a case earlier today and the price did increase a bit, its now $15.10 per gallon. Its still CJ-4 so no worries with compatibility.


'15 F350 6.7
Re: 5w40 needed for a 6.0... Yup another thread [Re: NattyBoh] #4479920
08/05/17 01:13 PM
08/05/17 01:13 PM
Joined: Sep 2015
Posts: 5,860
Kalifornia Kollective
BrocLuno Offline
BrocLuno  Offline
Joined: Sep 2015
Posts: 5,860
Kalifornia Kollective
Maryland is not the Mojave Desert. So you can live w/o the 40 at op temp.

+1 on the John Deere Plus 50 oil. It is very, very good oil, and your motor will live long and happy with it in the crankcase smile

Last edited by BrocLuno; 08/05/17 01:14 PM.

Formerly in marine engineering. In an earlier life I owned my own petroleum tank truck, and hauled for the majors and independent's.
Re: 5w40 needed for a 6.0... Yup another thread [Re: NattyBoh] #4480048
08/05/17 04:07 PM
08/05/17 04:07 PM
Joined: Oct 2009
Posts: 429
Balto, MD
NattyBoh Offline OP
NattyBoh  Offline OP
Joined: Oct 2009
Posts: 429
Balto, MD
I've said it before but my truck is far from stock. I'm not some kid playing with mommys money neither. The truck is a true 650ish HP truck, when I ran the 10w30 oil I actually saw a slight drop is ICP. Sure the oil degrades to a 30 but it does stay 40 for about 4000 or so miles. Thus I'm changing it anyway soon. That's why I want to stick with a 5w40

Re: 5w40 needed for a 6.0... Yup another thread [Re: NattyBoh] #4480100
08/05/17 05:22 PM
08/05/17 05:22 PM
Joined: Oct 2014
Posts: 739
Pa, USA
NH73 Offline
NH73  Offline
Joined: Oct 2014
Posts: 739
Pa, USA
Your is a 6.0L, made by Navistar. Navistar has no issue with CK-4 oils. So stick to 5w40 and not worry about it. This whole Ford debacle seems to be geared towards there 6.7L.


2017 Toyota RAV4 Hybrid
2004 Ford Explorer Sport Trac
2012 Gravely ZT XL 48 w/ Kawasaki FR730
Re: 5w40 needed for a 6.0... Yup another thread [Re: NattyBoh] #4480154
08/05/17 07:20 PM
08/05/17 07:20 PM
Joined: May 2007
Posts: 7,509
Indianapolis, IN
dnewton3 Offline
dnewton3  Offline
Joined: May 2007
Posts: 7,509
Indianapolis, IN
I know this is going to sound like heresy, but ...

Have you taken some UOAs? Do you know how your current lube is doing?

After all, if you make a choice to move to a different lube, how will you know if it's "better" or not? (I mean, other than a totally emotional whimsy and the joy of arguing the merits of the unproven with other BITOGers, of course.)


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: 5w40 needed for a 6.0... Yup another thread [Re: NH73] #4480188
08/05/17 08:08 PM
08/05/17 08:08 PM
Joined: Oct 2009
Posts: 429
Balto, MD
NattyBoh Offline OP
NattyBoh  Offline OP
Joined: Oct 2009
Posts: 429
Balto, MD
Originally Posted By: NH73
Your is a 6.0L, made by Navistar. Navistar has no issue with CK-4 oils. So stick to 5w40 and not worry about it. This whole Ford debacle seems to be geared towards there 6.7L.


I didn't know that. Can you provide some reading? I'm not challenging you, just like to read and learn.

Re: 5w40 needed for a 6.0... Yup another thread [Re: NattyBoh] #4480205
08/05/17 08:31 PM
08/05/17 08:31 PM
Joined: Sep 2015
Posts: 2,260
Malaysia
zeng Offline
zeng  Offline
Joined: Sep 2015
Posts: 2,260
Malaysia
How about any CK4 5W40 without SN ?

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