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Which diesel engine oil.

Cougarnewbie
Explorer
Explorer
Ordered a 2019 F-350 with the 6.7 diesel. Trading my Triton V-10 gas.
I always used Valvoline. Never had an oil issue.
Never had a diesel. There are several brands of oil out there You guys are the experts. What oil do you use?. Is synthetic my only choice?
Thanks in advance
AL
May All Your On Ramps be Downhill
23 REPLIES 23

buc1980
Explorer
Explorer
Shell rotela T6 5w-40 synthetic.
2017 Ford F350 DRW,2005 Kountry Star 35ft,16750 lb weight on SAILUN tire,6 points LIPPERD Level-up.New Mor/ryde IS suspension install.Full body paint 2022.RV flex roof 2023

hondapro
Explorer
Explorer
I use the Motorcraft 5w-40 in mine
Steve
2023 Ram 3500 6.7 Cummins Turbo Diesel
2022 Keystone Sprinter 32BH
B&W Companion

Dave_H_M
Explorer
Explorer
I do like BB TX.

blt2ski
Moderator
Moderator
Been using Delo since around 1988 for ALL of the diesels I have. Be them 2, 3, 4 or V8's! Got some Rosmella with the boat. Did not believe the rosmella name, now I know why its called that. Served original owner of boat for 20 years, boat is still going strong 35 years later!
As noted, get something that meets spec! If you are on the road, and you need oil, version you like is not available, add what ever flavor is. Have not had issues with any gas or diesel adding a quart of a different brand!

Your money, not mine!

marty
92 Navistar dump truck, 7.3L 7 sp, 4.33 gears with a Detroit no spin
2014 Chevy 1500 Dual cab 4x4
92 Red-e-haul 12K equipment trailer

Ron3rd
Explorer
Explorer
transferred wrote:
Shell T6 Rotella 5W40 for my diesels.


Hard to beat that one.
2016 6.7 CTD 2500 BIG HORN MEGA CAB
2013 Forest River 3001W Windjammer
Equilizer Hitch
Honda EU2000

"I have this plan to live forever; so far my plan is working"

transferred
Explorer
Explorer
Shell T6 Rotella 5W40 for my diesels.
05 Ram 3500 SRW QCSB Laramie 4x4 Cummins, 610lbs, 23k GC, 9.9k GV
(totaled) 16 Ram 3500 SRW RCLB SLT 4X4 Cummins Aisin, 900lbs, 25.3k GC, 11.5k GV
06 F550 4x4 PSD, 570lbs, 33k GC, 19.5k GV

Ron3rd
Explorer
Explorer
FishOnOne wrote:
Sport45 wrote:
Any CJ oil thatโ€™s not also CK rated is okay as long as it meets viscosity spec. CK oils need to meet the Ford lubrication spec. You can see Fordโ€™s position statement and a list of approved brands in the link below. I donโ€™t think Delo or Valvoline are listed at this time.

Ford Diesel Oil


Valvoline is on the list, but delo and delvac are not which is why I didn't recommend them.


The bottom line is to use an oil that meets Ford specs.

I use Delo 400 SDE that goes on sale for $28 for three 1 gallon jugs. It meets Cummin's specs but not Ford's. Delo 400 is API CK-4/SN which they claim in their marketing that it provides up to 50% better wear protection than API CJ-4. Ford recommends CJ-4 and not CK-4/SN for some reason, so go figure.

Looks like your choices mostly come down to one of the Rotella oils or Motorcraft.
2016 6.7 CTD 2500 BIG HORN MEGA CAB
2013 Forest River 3001W Windjammer
Equilizer Hitch
Honda EU2000

"I have this plan to live forever; so far my plan is working"

FishOnOne
Explorer III
Explorer III
Sport45 wrote:
Any CJ oil thatโ€™s not also CK rated is okay as long as it meets viscosity spec. CK oils need to meet the Ford lubrication spec. You can see Fordโ€™s position statement and a list of approved brands in the link below. I donโ€™t think Delo or Valvoline are listed at this time.

Ford Diesel Oil


Valvoline is on the list, but delo and delvac are not which is why I didn't recommend them.
'12 Ford Super Duty FX4 ELD CC 6.7 PSD 400HP 800ft/lbs "270k Miles"
'16 Sprinter 319MKS "Wide Body"

Sport45
Explorer
Explorer
Any CJ oil thatโ€™s not also CK rated is okay as long as it meets viscosity spec. CK oils need to meet the Ford lubrication spec. You can see Fordโ€™s position statement and a list of approved brands in the link below. I donโ€™t think Delo or Valvoline are listed at this time.

Ford Diesel Oil
โ€™19 F350 SRW CCLB PSD Fx4
'00 F250, CC SWB 4x2, V-10 3.73LS. (sold)
'83 F100 SWB 4x2, 302 AOD 3.55. (parked)
'05 GMC Envoy 4x2 4.2 3.73L.
'12 Edge 2.0 Ecoboost
'15 Cherokee Trailhawk

ppine
Explorer II
Explorer II
Rotella is good stuff. I like synthetic in the diesel. Makes for easier winter starting and lasts a long time. It does not wear out.

Iraqvet05
Explorer
Explorer
Rotella, Chevron Delo or Motocraft is what I used in our fleet at work. Walmart usually has the best prices on oil.
2017 Ford F-250 6.2 gas
2018 Jayco 28BHBE

US Army veteran

romore
Explorer II
Explorer II
Same here although I avoid the box store brands.

ktmrfs
Explorer
Explorer
I've used Delo, Shell Rotella and Valvoline diesel oil. All seem to be about the same based on Blackstone lab reports, so it's "are any on sale?" when I need to change oil
2011 Keystone Outback 295RE
2004 14' bikehauler with full living quarters
2015.5 Denali 4x4 CC/SB Duramax/Allison
2004.5 Silverado 4x4 CC/SB Duramax/Allison passed on to our Son!

azdryheat
Explorer
Explorer
The best oil, to me, is which ever one is on sale. As long as the oil is approved for diesel use it doesn't matter which oil you use.
2013 Chevy 3500HD CC dually
2014 Voltage 3600 toy hauler
2019 RZR 1000XP TRE