What engine oil
Logistics Pro
Joined: Feb 2005
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From: SEVA
I could not find any 5W40 Mobil oil on Ford's approved oil list. I did find 0W40, 10W30 and 15W40 Mobil oils listed, but no 5W40. Did you type it wrong?
Junior User
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From what I understand the oils listed on the Ford's site are the CK4 oils that are approved. The Mobil 1 5w40 Synthetic I used is CJ4 approved. All CJ4 oils are approved from what I've read around here. If I'm wrong someone please correct me as I need to do an oil change sooner than I thought lol...
Logistics Pro
Joined: Feb 2005
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From: SEVA
From what I understand the oils listed on the Ford's site are the CK4 oils that are approved. The Mobil 1 5w40 Synthetic I used is CJ4 approved. All CJ4 oils are approved from what I've read around here. If I'm wrong someone please correct me as I need to do an oil change sooner than I thought lol...
Laughing Gas
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so can I assume that oil has a long shelf life for you to order that much
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From: Texas
Mountain Pass
Joined: Dec 2017
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From: Kalispell, MT
Any dual use diesel/gasoline motor oil in an ILSAC GF-5 viscosity grade that is SN rated does not, by definition, meet Ford WSS-M2C171-F1. API SN requires phosphorus not to exceed 800 ppm. However, Ford WSS-M2C171-F1 requires phosphorus above 1000 ppm.
Junior User
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So does the Mobil 1 5W40 Synthetic not meet Ford's standard? Not sure on the phosphorus ppm for this oil .... Should I consider changing it out soon if it does not meet? This is a bit confusing now....
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Laughing Gas
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From: Lansing MI
Logistics Pro
Joined: Feb 2005
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From: SEVA
What is confusing? Is it on this list? https://www.fcsdchemicalsandlubrican...SSM2C171F1.pdf Pretty straight forward. As of the last revision, there are only 3 Mobil 1 products on the list. None in 5W40. 0W40, 15W40 and 10W30 are options.
On December 1, 2016 the American Petroleum Institute (API) began licensing two new diesel motor categories CK-4 and FA-4. API CK-4 was released to replace CJ-4. FA-4 is a low viscosity diesel oil released for diesel engines designed for a lower viscosity oil.
API FA-4
Due to its low viscosity FA-4 should not be used in any Ford diesel vehicles at this time.
API CK-4
Ford will not be recommending the use of CK-4 motor oils in any Ford diesel engines, new or old. Ford testing has shown some CK-4 type formulations have shown inadequate wear protection compared to CJ-4 formulations developed and licensed before 2016.
Junior User
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I believe the only confusion here is that Ford took a stand on CK-4 oils, and the older CJ-4 oils are all OK for use in Super Duty diesels. The following Ford statements can be found HERE.
On December 1, 2016 the American Petroleum Institute (API) began licensing two new diesel motor categories CK-4 and FA-4. API CK-4 was released to replace CJ-4. FA-4 is a low viscosity diesel oil released for diesel engines designed for a lower viscosity oil.
API FA-4
Due to its low viscosity FA-4 should not be used in any Ford diesel vehicles at this time.
API CK-4
Ford will not be recommending the use of CK-4 motor oils in any Ford diesel engines, new or old. Ford testing has shown some CK-4 type formulations have shown inadequate wear protection compared to CJ-4 formulations developed and licensed before 2016.
On December 1, 2016 the American Petroleum Institute (API) began licensing two new diesel motor categories CK-4 and FA-4. API CK-4 was released to replace CJ-4. FA-4 is a low viscosity diesel oil released for diesel engines designed for a lower viscosity oil.
API FA-4
Due to its low viscosity FA-4 should not be used in any Ford diesel vehicles at this time.
API CK-4
Ford will not be recommending the use of CK-4 motor oils in any Ford diesel engines, new or old. Ford testing has shown some CK-4 type formulations have shown inadequate wear protection compared to CJ-4 formulations developed and licensed before 2016.
Exactly what I thought and why it’s a little confusing. The Mobil 1 5w40 I used is CJ4. So I assumed it is OK.
Junior User
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Ditto....watch prices on Amazon for three-gallon cases. Under $20.00 a gallon is a deal. I just checked the prices...wow! Up to $75.00 for a case of three.....I use an app called camelizer to set target prices and buy it when the price drops.
Junior User
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Advantage HD DEO Full Synthetic 5W40 Country Mark
Allied 5W40 Allied Oil And Tire Company
AMALIE XLO Ultimate Full Synthetic Molybdenum Fortified 5W40 AMALIE Oil Company
Archer Gold 5W40 GROWMARK Inc
Blue Mountain 5W40 Old World Industries, LLC
CARQUEST 5W40 Warren Oil Company, LLC
CITGARD® SYNDURANCE® Plus Synthetic Heavy Duty Engine Oil 5W40 CITGO Petroleum Corporation
Duragard 5W40 Advantage Dist. and Lubricants, LLC
Duron UHP 5W40 5W40 PetroCanada Lubricants Inc.
Fleet Pro Elite Full Synthetic 5W40 Pinnacle Oil
International Full Synthetic 5W40 Navistar, Inc.
KLONDIKE 5W40 KLONDIKE Lubricants Corp.
Lubriguard Full Synthetic 5W40 Warren Oil Company, LLC
Mag 1 5W40 Warren Distribution
Mahindra 5W40 Mahindra USA, Inc.
Marathon Multipower3 Elite 5W40 Marathon Petroleum Co LP
MFA OIL 5W40 MFA OIL Company
Monolec Ultra® Syn Heavy Duty Engine Oil 5W40 Lubrication Engineers, Inc.
Motorcraft Full Synthetic Diesle Motor Oil 5W40 Ford Motor Company
Mystik® JT8® Synthetic Engine Oil 5W40 CITGO Petroleum Corporation
PEAK Heavy Duty Full Synthetic 5W40 5W40 Old World Industries, LLC
Premium Blue Extreme 5W40 Valvoline
PURUS Synthetic 5W40 5W40 AIOD
Rallye Maximum Duty Plus Full Synthetic 5W40 AMALIE Oil Company
Rotella® T6 Full Synthetic SAE 5W40 5W40 Shell Lubricants
Sinclair 5W40 Sinclair Oil Corporation
Suprex Gold ESP 5W40 GROWMARK Inc.
Synzol HDEO 5W40 Universal Lubricants
SYSTM7 5W40 Atlantic States Lubricants
TiLUBE 5W40 Tilube, LLC
U.S. LUBRICANTS MAXIMUM DUTYPLUS Full Synthetic 5W40 AMALIE Oil Company
Value Tech Maxium Duty Plus Full Synthetic 5W40 AMALIE Oil Company
Wolf's Head ExtremeDuty Synthetic Blend Full Synthetic 5W40 AMALIE Oil Company
Xcel Maximum Duty Plus Full Synthetic 5W40 AMALIE Oil Company
Logistics Pro
Joined: Feb 2005
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From: SEVA
What's your point? Yes, there are many 5W40 oils on the approved CK-4 spec list, but no Mobil 5W40 in CK-4 spec. The previous poster used some older CJ-4 spec Mobil 5W40 which is acceptable to FOMOCO.