5w40 Rotella. Why? Because. Motorcraft filters...all of them.

 

Motorcraft 10w 30 with a factory filter

 

You ran the thicker multivisc. in the winter? Would've expected the other way around.

Plan on using Rotella T6, 15w40.

 

The FSM calls for either 10-30 or 5-40 depending on conditions. Depending on what you call "small" for a trailer, it shouldnt fall into the severe category.
That said, I run 5-40 because 20% of my driving is short trips.

 

I run 5w40 year round. Vavoline PBE, Rotella T6 or Motorcraft 5w40.

 

I love oil threads.

 

Think I should tell everyone the secret?

"Cough, cough" running straight Archoil....

 

Rotella T6. 5w-40. Motorcraft filters.

 

One more for T-6, and Motorcraft Filters.

Dave

 

I have run 5W-40 since the day I bought mine. Changed every 5k miles. Used Rotella for the most part until 35000, then Valvoline PBX ever since. I just finished my 95k service.

I have contemplated using Triax Fleet Supreme ESP 5W-40, Class 8 trucks go 80k on oil drains. If I did this, I would go 10k on oil changes with an analysis.

Thoughts??

Cale

 

Just changed it at the Ford dealer and they put in 15-40. This is in CA where temp doesn't get lower that 50 degrees or so. Who am I to argue?

 

Ya i said it backwards 15w40 summer and 5 40 winter

 

I used triax in my 6.0 and it loved it. I got oa a few times but never went more than 7k on a change.
I read on triax website that 6.7 get 1 to 2 mpg more with their oil. Im going to try n see and ill report back. I never get over 14.8 towing and 18.9 highway un loaded

 

Mobil 1 Turbo Diesel Truck 5W-40 since the third oil change. Ford filter. Local Meijer sells the Mobil 1 for $25 a gallon.

 

do not use mobil 1 TBT



I also used mobil 1 TBT until ford announced their new oil standard due to excessive wear. mobil 1 tbt does not meet ford oil spec WSS-M2C171-F1. I checked the bottles and even called mobil 1 tech support to ask.

After finding out I tried red line diesel truck oil but it is too expensive. Now I buy amsoil 15w-40 signature diesel truck oil with their preferred buyer program pricing.

Used to buy motorcraft filters but switched to napa platinum a few years ago.

 

I use Mobil 5W40 with Donaldson or Wix X filters. Change oil when minder goes off, usually around 10,000 miles. No problems. Any synthetic will give better protection than standard oil. I'll let you know how the oil sample comes back. I use synthetic in everything I own (vehicles, skid steer, garden tractor, lawn mowers, tiller etc). Never had an oil related failure using synthetic and it holds up better especially on air cooled engines. As long as it meets the manufacturer's specs, you should be good. More important than brand that it meets the manufacturer's specs.

 

Rotella 5w-40 with wix filter.

Stocked up last year with their mail in rebate.

 

Schaeffer Supreme 9000 Full Synthetic 5W-40
Its all you need.:sofa:

 

Funny, Ford states the reason Mobil1 does not meet their criteria is due to phosporous levels below 1000ppm. According to Mobil the level is 1100ppm and is not
an FA-4. Delo states itis moving forward to comply with the new Ford specs.

 

I spoke with Mobil over a year ago. Maybe another phone call is in order if one of you want to be sure. I’m going to stick with amsoil signature series as it is full synthetic unlike mobil 1 turbo diesel oil.

 

Mobil Delvac 1 ESP 0W-40

Mobil HDEO 10W30

Mobil HDEO 15W40

These Mobil oils do meet the Ford spec, always wondered why their TD truck 5w40 doesn't. Only reason is I have a ton of it and got it for a very good price.

I ran many gallons of TD truck 5w40 (CK4) through my 14 6.7 with no issues. I always just added some ZDDP but didn't have the exhaust bazooka to worry about supposedly hurting the catalyst materials with additives that are good for wear. My 19 is bazooka equipped still though.

 

I run Mobil Delvac 1 ESP 0W40 year around......and put it in my coffee......it's that gooooood!!!

 

Motorcraft 10-30 and filter from day one.

Why not, they designed the engine around it?

 

Because it isn’t recommended for harsh environments.....by Ford.

 

Then what is?

 

I did end up putting in triax 5/40 for the last 2 oil changes. I change every 5k
And i actually think from the oil and not winter fuel im at 22.2 mpg highway at 70 mph on dash meter i drive alot for work about 1200 miles a week.

 

I run T6 w/ Motorcraft filter and have no complaints. Last oil analysis is attached.

 

Great report! I ran T6 in my 6.0 and after looking at this I'll be running it in my 6.7

 

Second oil change. Ford 15w40 and filter both times. Have it done at the dealership with tire rotation and truck washed for $105.

 

Rotella T6 this last change. Previously Motorcraft 5w40. Next change will be Valvoline PBE 5w40. All are synthetic oils.