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#4479718 - 08/05/17 09:40 AM 5w40 needed for a 6.0... Yup another thread
NattyBoh Offline


Registered: 10/26/09
Posts: 429
Loc: 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?

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#4479724 - 08/05/17 09:47 AM Re: 5w40 needed for a 6.0... Yup another thread [Re: NattyBoh]
The_Eric Offline


Registered: 03/31/10
Posts: 5354
Loc: Iowa
10w-30
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2005 Lincoln Aviator 4.6 DOHC
2000 Honda Accord 2.3
2001 Hyundai Elantra 2.0
1979 Ford F-150 351M

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#4479734 - 08/05/17 09:56 AM Re: 5w40 needed for a 6.0... Yup another thread [Re: NattyBoh]
FermeLaPorte Offline


Registered: 07/25/17
Posts: 472
Loc: Texas (south)
5w40 sounds good enough. I'll continue using it
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2014 1.6L Nissan Versa Sedan, 5 spd, 5k OCI.
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#4479742 - 08/05/17 10:08 AM Re: 5w40 needed for a 6.0... Yup another thread [Re: NattyBoh]
NattyBoh Offline


Registered: 10/26/09
Posts: 429
Loc: Balto, MD
What about brands?

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#4479752 - 08/05/17 10:22 AM Re: 5w40 needed for a 6.0... Yup another thread [Re: NattyBoh]
FermeLaPorte Offline


Registered: 07/25/17
Posts: 472
Loc: 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


Edited by FermeLaPorte (08/05/17 10:23 AM)
_________________________
Always Mobil 1
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2011 3.5L Chevrolet Impala, Automatic, 5k OCI.

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#4479762 - 08/05/17 10:31 AM Re: 5w40 needed for a 6.0... Yup another thread [Re: NattyBoh]
BrianF Offline


Registered: 02/25/15
Posts: 551
Loc: 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.
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#4479778 - 08/05/17 10:43 AM Re: 5w40 needed for a 6.0... Yup another thread [Re: NattyBoh]
Linctex Offline


Registered: 12/31/16
Posts: 6176
Loc: 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?
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#4479864 - 08/05/17 12:08 PM Re: 5w40 needed for a 6.0... Yup another thread [Re: NattyBoh]
NattyBoh Offline


Registered: 10/26/09
Posts: 429
Loc: 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.

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#4479889 - 08/05/17 12:26 PM Re: 5w40 needed for a 6.0... Yup another thread [Re: NattyBoh]
roadrunner1 Offline


Registered: 04/08/09
Posts: 1285
Loc: 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.
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#4479920 - 08/05/17 01:13 PM Re: 5w40 needed for a 6.0... Yup another thread [Re: NattyBoh]
BrocLuno Online   content


Registered: 09/06/15
Posts: 5528
Loc: 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


Edited by BrocLuno (08/05/17 01:14 PM)
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#4480048 - 08/05/17 04:07 PM Re: 5w40 needed for a 6.0... Yup another thread [Re: NattyBoh]
NattyBoh Offline


Registered: 10/26/09
Posts: 429
Loc: 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

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#4480100 - 08/05/17 05:22 PM Re: 5w40 needed for a 6.0... Yup another thread [Re: NattyBoh]
NH73 Offline


Registered: 10/31/14
Posts: 699
Loc: 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.
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#4480154 - 08/05/17 07:20 PM Re: 5w40 needed for a 6.0... Yup another thread [Re: NattyBoh]
dnewton3 Offline



Registered: 05/14/07
Posts: 7392
Loc: 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

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#4480188 - 08/05/17 08:08 PM Re: 5w40 needed for a 6.0... Yup another thread [Re: NH73]
NattyBoh Offline


Registered: 10/26/09
Posts: 429
Loc: 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.

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#4480205 - 08/05/17 08:31 PM Re: 5w40 needed for a 6.0... Yup another thread [Re: NattyBoh]
zeng Offline


Registered: 09/01/15
Posts: 2189
Loc: Malaysia
How about any CK4 5W40 without SN ?

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