Forum Discussion

brooks379's avatar
brooks379
Explorer
Aug 12, 2017

Good bye Shell Rotella

Unless I'm missing something...After using Shell Rotella oil's since the early 80's I just returned a case of Rotella of T-6 full synthetic for a case of Motorcraft oil for my 6.7 Powerstroke. Seems everything I could find said DO NOT put any oil in your 6.7 that Ford has not approved and Shell CK-4 T-6 isn't approved by them. These new Super Duty's cost way to much for me to think I know more than they do so I'm switching oil after 40 years of using Rotella oils.
  • Ron3rd wrote:
    Sounds identical to the DEXOS scam that GM is running. Wife's Chevy Traverse requires "DEXOS" certified oil.



    Exactly. I think GM lost a lawsuit over that but not 100% sure.

    Motorcraft oil goes out to the lowest bidder.

    Its nothing special.

    Even if it is just an "agreement" I'd still follow OE recommendations while its under warranty.

    I still use Dexos "approved" Mobile 1 in my truck.
  • All I can say is pretty much every major mfg of vehicles, equipment , motor sports toys has their namesake "reccomended" brand of oil, coolant, gear lube, etc.
    Yet the other thousands of name brand bottles of ________ flying off the shelves of every parts store seem suitable within their application range and vehicles aren't dying on the side of the road like they were poisoned!

    Maybe there's something to this Motorcraft oil thing or ...........
  • I realize there are some 5 w 40 / 15 w 40 oils that Ford has approved but after using Shell in pickups and semis for so many years with nothing but great results it's hard to believe that todays Rotella T - 6 is not recommended by Ford..............This is a article I was reading about Fords oil info.

    Ford is recommending the use of a new Motorcraft diesel engine oil for its Super Duty trucks and warning fleet and commercial customers to avoid using most new CK-4 or FA-4 oils because they may cause damage to the engine, the company told AutomotiveFleet.com.

    Motocraft's WSS-M2C171-F1 formulation should be used in all Power Stroke diesels, especially the 6.7L that powers the F-250, F-350, and F-450, because it better protects the engine against high-mileage wear, according to the company. Ford had previously recommended CJ-4 formulations for its Super Duty trucks. On Dec. 1, the American Petroleum Institute began licensing the new CK-4 and FA-4 oils. CJ-4 oils will eventually be phased out.
    Commercial users should avoid the FA-4 formulation due to its low viscosity. CK-4 motor oils should be avoided because they provide "inadequate wear protection," according to a statement. The oil drain intervals remain unaffected, said Sherrice Gilsbach, a Ford spokesperson.
    The oil certification information is located on the back of the oil pouch in a circle known as the API donut.
    Customers shouldn't use oils labeled CK-4/SN unless they have been approved by Ford to meet WSS-M2C171-F1. This is possible with SAE 10W-40, 15W-40, 5W-40 and 0W-40 oils. SAE 10W-30 oils showing CK-4/SN cannot meet WSS-M2C171-F1.
    Motorcraft Super Duty diesel motor oil is formulated with premium hydroprocessed base oils and additive technology necessary to meet WSS-M2C171-F1. This new oil also meets the requirements of Cummins CES20086, Detroit Diesel 93K222, Volvo VDS-4.5 and Mack EOS-4.5, according to Ford.
  • You can still find good synthetic CJ-4 oil for order. Saw this over on the FTE forums. I may be ordering it for my next change. I'm currently running T6 CK-4 in my old 7.3 with Archoil.

    This oil below meets Ford's WSS M2C171-E specs, which I believe is the spec through the 2016 MY.

    Triax Oil
  • Ron3rd's avatar
    Ron3rd
    Explorer III
    Sounds identical to the DEXOS scam that GM is running. Wife's Chevy Traverse requires "DEXOS" certified oil.

    I did a lot of research on DEXOS and discovered it is not really a "standard" but more of a Licensing Agreement whereby money goes into GM's pocket so an oil company can put the DEXOS APPROVED label on their oil. If you don't pay GM the licensing fee, you can't say your oil is "DEXOS" approved no matter how high of a standard it meets.

    All DEXOS approved oils I have seen BTW are either synthetic or semi-synthetic blends.

    But I get what the OP is saying; why give Ford an excuse to not honor a warranty!!
  • There are two Rotella oils (and one other Shell oil) on this list that meet the new spec - both synthetic blends, I believe:

    PDF of approved oils.

    You'll need to scroll down to the 15W-40 section to find them.

    Rob