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10W-30 in new Super Duty Diesel? Not compatible with B5-B20 #5340359 02/03/20 08:46 PM
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AcuraMDX2014 Offline OP
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Is Ford using 10W-30 in new Super Duty diesels? If so this would be wrong oil per Ford when diesel fuels with B5-B20 are used and are the norm in my area at least.

Image is from 2019 super duty manual. (was in Spanish--my mistake) [Linked Image]
[Linked Image]


If so, I will change oil in F-350 diesel to 5W-40 (Rotella T6?, which meets CK-4 and Ford Material Engineering Specification WSS-M2C171-F1, per [img]https://www.enginebuildermag.com/20...et-ford-diesel-engine-oil-specification/[/img]) especially since I'll be towing a lot and very low temperatures are possible for me.

Last edited by AcuraMDX2014; 02/03/20 09:10 PM. Reason: wrong image

F-350
Re: 10W-30 in new Super Duty Diesel? Not compatible with B5-B20 [Re: AcuraMDX2014] #5340365 02/03/20 08:54 PM
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Rand Offline
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why is it in spanish?


2019 Jeep Cherokee Trailhawk 2.0T
2020 Hyundai Elantra "Value Edition"
Re: 10W-30 in new Super Duty Diesel? Not compatible with B5-B20 [Re: Rand] #5340376 02/03/20 09:07 PM
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Originally Posted by Rand
why is it in spanish?

[Linked Image]


F-350
Re: 10W-30 in new Super Duty Diesel? Not compatible with B5-B20 [Re: AcuraMDX2014] #5340491 02/04/20 03:25 AM
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My '15 6.7 currently has 125,000 mi. and has had nothing but 10w-30 JD Plus 50 II since factory fill.


'15 F350 6.7
Re: 10W-30 in new Super Duty Diesel? Not compatible with B5-B20 [Re: AcuraMDX2014] #5340546 02/04/20 06:37 AM
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I go with 5W40 Delo synthetic CJ-4. And I use Mobil "advanced technology" diesel fuel.

I will probably go with Rotella T6 5W40 CK-4 when I am out of Delo CJ-4.

I do not believe the Delo 5W40 CK-4 is on the Ford approved list yet.


2015 Ford F-250 w/Powerstroke
2016 Subaru Crosstrek CVT (wife's)
Re: 10W-30 in new Super Duty Diesel? Not compatible with B5-B20 [Re: AcuraMDX2014] #5340548 02/04/20 06:37 AM
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I believe they’ve been using it in the Ford’s. I thought I read the new 2020 Ram Cummins was spec’d at 10w30 HDEO. Although most will probably still run an Xw40 weight.


2012 Ram 2500 SLT 6.7L Cummins 4x4
2018 Dodge Durango GT 3.6L 4x4
Re: 10W-30 in new Super Duty Diesel? Not compatible with B5-B20 [Re: AcuraMDX2014] #5340595 02/04/20 07:51 AM
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Low temperatures in metro Denver tonight are to be 3F, which is barely in the 0F+ range for "Normal Usage" 10W30. I called dealer service department that I purchased the 2019 F-350 diesel from and left a message asking what comes from factory. If they don't know or don't reply I may call another dealer. I don't know where to call from there. I don't plan on driving when its below 10/15F but it could happen. I'm going to pickup a camper in the mountains soon but will delay trip if temperatures are below 0F.

Full synthetic doesn't appear to be good choice for engine 1,000 mi. break-in, which I'll pass on my way to pickup camper.

Last edited by AcuraMDX2014; 02/04/20 07:52 AM.

F-350
Re: 10W-30 in new Super Duty Diesel? Not compatible with B5-B20 [Re: AcuraMDX2014] #5340702 02/04/20 09:53 AM
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bullwinkle Online Confused
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I wonder which 0W40 Ford would recommend? I've seen it in T6, but CK-4 0W40 seems pretty rare.


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: 10W-30 in new Super Duty Diesel? Not compatible with B5-B20 [Re: bullwinkle] #5340741 02/04/20 10:36 AM
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Originally Posted by bullwinkle
I wonder which 0W40 Ford would recommend? I've seen it in T6, but CK-4 0W40 seems pretty rare.


I can think of only 3 0w40 oils that meet the Ford spec.

1. Kendall SHP arctic 0w40
2. Rotella T6 0w40
3. Amsoil HD SS 0w40

There is also the John Deere 0w40 but I don’t think the new CK-4 formula meets the Ford spec.

Re: 10W-30 in new Super Duty Diesel? Not compatible with B5-B20 [Re: AcuraMDX2014] #5340750 02/04/20 10:44 AM
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None of the oils above meet Ford Material Engineering Specification WSS-M2C171-F1

https://parts.ford.com/content/dam/..._Motor_Oils_Meeting_Ford_WSSM2c171F1.pdf

Re: 10W-30 in new Super Duty Diesel? Not compatible with B5-B20 [Re: AcuraMDX2014] #5340780 02/04/20 11:09 AM
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Originally Posted by AcuraMDX2014
Low temperatures in metro Denver tonight are to be 3F, which is barely in the 0F+ range for "Normal Usage" 10W30. I called dealer service department that I purchased the 2019 F-350 diesel from and left a message asking what comes from factory. If they don't know or don't reply I may call another dealer. I don't know where to call from there. I don't plan on driving when its below 10/15F but it could happen. I'm going to pickup a camper in the mountains soon but will delay trip if temperatures are below 0F.

Full synthetic doesn't appear to be good choice for engine 1,000 mi. break-in, which I'll pass on my way to pickup camper.

10w-30 is what is used as factory fill on the 6.7 PowerStroke


'15 F350 6.7
Re: 10W-30 in new Super Duty Diesel? Not compatible with B5-B20 [Re: AcuraMDX2014] #5340844 02/04/20 12:41 PM
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Originally Posted by AcuraMDX2014
Is Ford using 10W-30 in new Super Duty diesels? If so this would be wrong oil per Ford when diesel fuels with B5-B20 are used and are the norm in my area at least.

Image is from 2019 super duty manual. (was in Spanish--my mistake) [Linked Image]
[Linked Image]


If so, I will change oil in F-350 diesel to 5W-40 (Rotella T6?, which meets CK-4 and Ford Material Engineering Specification WSS-M2C171-F1, per [img]https://www.enginebuildermag.com/20...et-ford-diesel-engine-oil-specification/[/img]) especially since I'll be towing a lot and very low temperatures are possible for me.

You had already figured this out on your own.

Yes, use a CK-4 5W-40 or 15W-40 (thicker oil) if using biodiesel. Having Ford spec would give you peace of mind and warranty coverage, but it probably won't make a bit difference. Use 5W-40 in cold climates or for longer oil-change intervals. My favorite would be a 15W-40, as it provides the thickest base oil for best wear protection for in all conditions including towing, but you can't use it without an oil-pan heater in your area, and the OCI will be a little shorter than with a 5W-40. Delvac/Rotella/Delo/Premium Blue are all good.


2020 Toyota Prius Prime XLE plug-in hybrid, 2ZR-FXE engine, ~ 4,000 mi
TGMO 0W-16 SN/RC Japan
OEM spin-on oil filter Japan
Re: 10W-30 in new Super Duty Diesel? Not compatible with B5-B20 [Re: AcuraMDX2014] #5340975 02/04/20 03:36 PM
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There’s no difference between the viscosity's listed in OCI, just follow the IOLM. I doubt your locale has much if any bio blend fuel this time of the year as its the first to gel.


'15 F350 6.7
Re: 10W-30 in new Super Duty Diesel? Not compatible with B5-B20 [Re: AcuraMDX2014] #5341109 02/04/20 05:58 PM
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Could the 5W-40 be listed as the oil for severe duty versus 15W-40 because severe duty could be for snow plows and colder climates? The only reference that I found in manual for severe duty service mentioned snow plow.


F-350
Re: 10W-30 in new Super Duty Diesel? Not compatible with B5-B20 [Re: AcuraMDX2014] #5341132 02/04/20 06:17 PM
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Originally Posted by AcuraMDX2014
Could the 5W-40 be listed as the oil for severe duty versus 15W-40 because severe duty could be for snow plows and colder climates? The only reference that I found in manual for severe duty service mentioned snow plow.

No.

It's listed as severe duty because it has a synthetic base oil vs. the conventional or synthetic-blend base oils of 15W-40 and 10W-30.

Synthetic base oils oxidize (cook) slower than conventional base oils, which helps in severe-duty service, as the oil temperature is higher, which increases the rate of oxidation.

Alternatively you can still use a conventional or synthetic-blend oil in severe-duty service but do shorter oil-change intervals (OCI's). Conversely you can do longer OCI's with synthetic oil in normal-duty service than with conventional oil.

If the snow plow is said to cause severe duty, it could be because the oil temperatures get high, as the truck is moving too slowly for the cooling system to run efficiently.


2020 Toyota Prius Prime XLE plug-in hybrid, 2ZR-FXE engine, ~ 4,000 mi
TGMO 0W-16 SN/RC Japan
OEM spin-on oil filter Japan
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