[mscott]

My wife took the truck in for my first oil change, so I didn't get to talk to the Ford service advisor at the time. I'm now at almost 14k miles and it's time for the first "official" oil change and 15k mile service (before a long trip). First oil change was on the dealer.

Spoke to the advisor, and he indicated that they don't carry a full synthetic for the diesels, just the synthetic blend. Is this the case for all of the Ford dealers, or just mine?

 

[mscott]

Answered my own question:

Motorcraft® Motor Oils ? The Official Ford Parts Site | FordParts.com
Motorcraft® SAE 5W-40 Full Synthetic Diesel Motor Oil

 

[larrgh]

They may not carry it in stock for a diesel if they do not service many diesels. I suspect you could have them purchase synthetic brands locally or order Motorcraft prior to your planned visit.

 

[Nickelplated5s]

Rotella T6 seems to be the syn oil of choice on this site. I run Delo but change at 3kish.

 

[trikerjim]

I just put in Royal Purple full synthetic as the previous owner used synthetic.This in a 7.3 Power Stroke= 1999 This site is great for a Newbie= Thanks

 

[ArcticDriver]

I just put in Royal Purple full synthetic as the previous owner used synthetic.This in a 7.3 Power Stroke= 1999 This site is great for a Newbie= Thanks

If you are on a budget, the Shell Rotella T-6 can be found at Wal-Mart for $21/gallon and they carry the Motorcraft FL-1995 oil filter for $10. The T-6 is a full synthetic 5W-40 and the Injectors seem to love it.

The guys here have had real good luck with this combination in all weather conditions and with roughly 5K mile oil change intervals the lab results on the oil analysis shows T-6 has TBN (Additives) remaining. My Blackstone Lab Analysis reports I could extend my OCI to 7K miles.

Maybe save you a few bucks in the future. :winking:

 

[Nickelplated5s]

SnoCat, SledMan... Seriously though, why do injectors like syn oil?

 

[gearhead1011]

SnoCat, SledMan... Seriously though, why do injectors like syn oil?

I was wondering the same thing. Maybe there's a difference on the older trucks that used a HPOP but not these with a HPFP.

 

[ArcticDriver]

I was wondering the same thing. Maybe there's a difference on the older trucks that used a HPOP but not these with a HPFP.

Have you ever seen a 5W-40 in Dino Oil ?

I think its more that the HEUI likes the 5W characteristics for cold starts and the higher quality synthetic diesel motor oils offer great sheer stability.

Out of curiousity, what oil do you guys find is best for your HPFP? Thanks.

 

[converted]

I use the Mobile 1 Delvac for semis from Napa. Usually only $29 per gallon. I have tried the T-6, the Motorcraft, and now the Mobile, so far I like the mobile, as the T-6 made the engine noisy (yet the oil analysis was good) and the Motorcraft oil analysis wasn't all that great. I am doing an oil change this week or next and will get an analysis on the Mobile...if it turns out good, then I will stick with it, though I have heard that some folks have had high copper in their Mobile oil analysis...

Cale

 

[2015_PSD]

I have tried the T-6, [...] the T-6 made the engine noisy (yet the oil analysis was good).

This was my experience as well. The UOA looked good, but the engine seemed noisier (with my seat of the pants "analysis" since noise with various oils is usually quite subjective). Delo 400 LE (5W-40) worked pretty well too. I have some Delvac 1 to try as well, but I have Kendall Super-Dxa 15W-40 Synblend in it now and it is very smooth and quiet. It will be interesting to see what the UOA shows.

 

[ArcticDriver]

This was my experience as well. The UOA looked good, but the engine seemed noisier (with my seat of the pants "analysis" since noise with various oils is usually quite subjective). Delo 400 LE (5W-40) worked pretty well too. I have some Delvac 1 to try as well, but I have Kendall Super-Dxa 15W-40 Synblend in it now and it is very smooth and quiet. It will be interesting to see what the UOA shows.

15W-40 SynBlend in the winter?

You must live in a mild climate :grin2:

 

[2015_PSD]

15W-40 SynBlend in the winter?

You must live in a mild climate

The J300 viscosity chart shows 15W is usable down to -20C as shown in the image below taken from page 8 of (https://www.infineum.com/media/80723/api-engine-oil-classifications.pdf). Obviously, not for use in "everyone's" winter, but it will work for a fair majority with no issues.

 

[ArcticDriver]

I am aware of the characteristics of different viscosity engine oils and I would respectfully disagree with your statement that it would be "usable" for temperatures even approaching -20*C (-4*F). Using it in near zero temperatures throughout the winter is doing a disservice to an engine.

Now if you are talking about using it in a Big Rig that is seldom shut down and operated at continuous high RPMs for 100s of miles at a go then thats a different story and not really applicable to this forum.

But I don't want to get into an oil war with you...I was just making light conversation about your living in a temperate climate.

Good luck to the original poster.

EDIT: My Ford Owner's Manual indicates that 15W-40 should not be used in temps below -2*C (+30*F).
In fact, it recommends 0W-30 for any regular operations below -18*C (0*F).

 

[ArcticDriver]

BTW, in the chart you provided Column 2 is based on ASTM D5293. The ASTM website says the following about D5293 CCS apparent viscosity is not suitable for predicting low temperature flow to the engine oil pump and oil distribution system.

 

[2015_PSD]

I am aware of the characteristics of different viscosity engine oils and I would respectfully disagree with your statement that it would be "usable" for temperatures even approaching -20*C (-4*F). Using it in near zero temperatures throughout the winter is doing a disservice to an engine. But I don't want to get into an oil war with you...I was just making light conversation about your living in a temperate climate.

Good luck to the original poster.

EDIT: My Ford Owner's Manual indicates that 15W-40 should not be used in temps below -2*C (+30*F).
In fact, it recommends 0W-30 for any regular operations below -18*C (0*F).

LOL - we can agree to disagree without proclaiming war. With that said, I would not use 15W-40 down to -20C either, I was just pointing out what the J300 charts show.

My OM shows a different temperature for 15W-40 use (down to -7C) and is likely the cut-off of where I would go when using it and would switch to a 5W-40 below that:

 

[ArcticDriver]

:grin2:

I have been caught in the crossfire of oil debates on some forums...sorry if I came in with both barrels loaded.

Thanks for posting your Owners Manual.

Have a good one :winking:

 

[Blue12]

Also note from the OM post that 10W-30 is not approved for biodiesel which is pretty hard to avoid here in the midwest. I too found back in 2012 that the dealer did not stock the 5W-40 after selling me a maintenance plan with full synthetic.

 

[ArcticDriver]

Also note from the OM post that 10W-30 is not approved for biodiesel which is pretty hard to avoid here in the midwest. I too found back in 2012 that the dealer did not stock the 5W-40 after selling me a maintenance plan with full synthetic.

I think all of your diesel fuel in farm country is allowed up to 5% bio-diesel (B5) without need for any markings on the pump.

Anything over B5 should be considered harsh operating conditions and the shorter drain interval should be followed.

As I understand it, the problem with running Bio-diesel in newer engines is the biodiesel is longer chained and does not burn and instead winds up diluting the engine oil, right?

Do you know of any diesel rated motor oils in a 10W-30 that are specifically rated for Bio-Diesel? I think Amsoil is good for up to B5. And I have read 15W-40 motor oils are better at avoiding the dilution issue.

Can you add more to this topic? Have you researched it much? I have a 7.3 PSD so its not really a concern.

Thanks

 

[larrgh]

I just had Quicklane at the local Ford Dealer do an oil change. They used 5w40 that was stocked in their parts dept. I would go next time and have the dealer order the oil for your oil change if they don't stock it.