Chevron Delo Low E Full Synth. 5W-40

[Garak]

Originally Posted By: oilgeezer
If there is no difference in performance, why is it the oil of choice in some vehicles and not others?

In addition to what Dave said, you have to look closely at the application. Take a look at your European vehicles, specifically the German ones. The Germans want something that's got sufficient thickness when warmed up, yet is sufficiently thin when doing winter starts. Before, 15w40 in the summer and something like a 5w30 in the winter would work.

For the sake of convenience and not playing around with seasonal changes and extending the OCIs, the Europeans came up with the ACEA and manufacturers specifications. Plenty of the old Benzes lasted hundreds of thousands of miles on conventional oils. But, there is an argument to be made against seasonal oil changes, while still having the necessary protection. Then, the OCI can be stretched out and benefit all the owners of such a vehicle.

For the average North American vehicle, the specifications have called for 10w30, 5w30, and 5w-20 over the years, along with 15w40 and 10w30 for diesels. With shorter North American OCIs, the job can be done admirably with conventional oils.

 

[Invasivore]

What about for the HEUI diesels aka 6.0 powerstroke crowd? There is a noticeable difference in oil shear between Dino and synthetic with my motor.

 

[roadrunner1]

Originally Posted By: Invasivore
What about for the HEUI diesels aka 6.0 powerstroke crowd? There is a noticeable difference in oil shear between Dino and synthetic with my motor.


Which one shears more?
Also which different oil(s) have you tried?

 

[dnewton3]

Originally Posted By: roadrunner1
Originally Posted By: Invasivore
What about for the HEUI diesels aka 6.0 powerstroke crowd? There is a noticeable difference in oil shear between Dino and synthetic with my motor.


Which one shears more?
Also which different oil(s) have you tried?


Yes - please tell, and post up UOA links, too.

 

[Ken2]

Originally Posted By: TiredTrucker
To put my experience into better perspective, I took the OCI's out to 50% longer than the OEM recommended interval on both the standard Delo and the Sythetic. The UOA numbers were virtually identical across the board for both products. That convinced me that the syn wasn't worth it in this application.
This is also a testament to the very high quality of conventional oils from a manufacturer that isn't bumping on the bottom of the spec to shave the price. I've used Chevron products for many years both industrially and personally with excellent results. Other top brand products perform as well.

 

[JR]

I have ran sae30 apiCF upto 10k in a 97 7.2 psd. Have over 120k of that service. Has 205k runs like new still.

I dont think syn is cost affective in this application either.

Dino= $50 USD a 5gal pail.
Syn= &154 USD 5gal pail.


Ken.

 

[skellyman]

Originally Posted By: dnewton3
Yes, the 5w-40 market is heating up.

The lube companies are finding lucrative opportunities in every-widening niches. Where T6 (and the former RTS) and TDT were once the only big players on the shelf, now you can find Valvoline and Chevron cashing in on folks penchant to over-spend ...






If you think it's heating up wait till you see the 0W and 5W -30 coming with the new CK-4 rating.

 

[FordF150]

Originally Posted By: dnewton3
Originally Posted By: roadrunner1
Originally Posted By: Invasivore
What about for the HEUI diesels aka 6.0 powerstroke crowd? There is a noticeable difference in oil shear between Dino and synthetic with my motor.


Which one shears more?
Also which different oil(s) have you tried?


Yes - please tell, and post up UOA links, too.


I don't claim to speak for him or have any proof positive..Just an opinion from research..

It is a pretty generally accepted practice to use synthetic oil in Powerstroke Diesels which eliminates a few issues...Since Powerstrokes use High Pressure Oil Pumps to drive the Fuel injectors, Fords have issues with stiction on the fuel injectors...

Basically the oil isn't just used for lubing the internals...the same sump oil is critical to the fuel delivery as well...

http://www.dieselpowermag.com/tech/ford/1304dp_heui_how_high_pressure_oil_injection_systems_work/

And since the oil serves both functions and in severe conditions shear is quite an issue...

For myself with the research I have done...Synthetic seems to hold up better with cleaning add packs and has more desirable shear quality....

This seems to be generally accepted across the Power Stroke community from opinions of several master mechanics. Not a rule or standard...Take it for what it is worth...

 

[roadrunner1]

Originally Posted By: FordF150
Originally Posted By: dnewton3
Originally Posted By: roadrunner1
Originally Posted By: Invasivore
What about for the HEUI diesels aka 6.0 powerstroke crowd? There is a noticeable difference in oil shear between Dino and synthetic with my motor.


Which one shears more?
Also which different oil(s) have you tried?


Yes - please tell, and post up UOA links, too.


I don't claim to speak for him or have any proof positive..Just an opinion from research..

It is a pretty generally accepted practice to use synthetic oil in Powerstroke Diesels which eliminates a few issues...Since Powerstrokes use High Pressure Oil Pumps to drive the Fuel injectors, Fords have issues with stiction on the fuel injectors...

Basically the oil isn't just used for lubing the internals...the same sump oil is critical to the fuel delivery as well...

http://www.dieselpowermag.com/tech/ford/1304dp_heui_how_high_pressure_oil_injection_systems_work/

And since the oil serves both functions and in severe conditions shear is quite an issue...

For myself with the research I have done...Synthetic seems to hold up better with cleaning add packs and has more desirable shear quality....

This seems to be generally accepted across the Power Stroke community from opinions of several master mechanics. Not a rule or standard...Take it for what it is worth...


While I am not disagreeing entirely with you, there is more to this issue of "stiction" than the type of motor oil selected. FICM issues lead to the injector issues mentioned above.

I have owned several powerstrokes, 6.0's and 7.3's, and I have NEVER experienced an injector issue. I drive 30,000 mi. - 50,000 mi. per year, exclusively use 10w30 dino, and do 7,500 mi. OCI's.
In your research how many Ford owners run their lube out to 7,500 mi.? Most of them that I know through other forums change 3,000 mi. - 5,000 mi. using synthetic. My own UOA's suggest I could go further, much further, but I have chosen to stick to the owners manual recommended intervals.

The problem currently and into the future with the 6.0 is that they were last offered during a shortened '07 model run, so most now are second, third and beyond owner trucks. Unless you own one bought from a close friend/ relative you have no idea what the previous owner did as far as maintainence, if he run the batteries low several times(the number one FICM killer), failed to change fuel filters, neglected oil changes, and so on.

5w-40, along with 10w30 will "mask" an injector issue due to its easier cold-flow vs. 15w40, but you noted synthetic keeping engines cleaner?????????? I have never seen any of my diesel engines "dirty". One in particular currently has 11,500 hrs. and last winter I decided to get the injection pump rebuilt (original). When the mechanic brung the pump back it was due to have the valves adjusted. When we pulled the valve cover off he commented that he had never seen an engine with this many hours that clean.
In my experience all current HDEO's add-packs (CJ-4) will keep a diesel engine clean, I don't think "dirty diesels" have been an issue since the two stroke Detroit Diesel days.

 

[dnewton3]

I would agree with roadrunner1.

I've not owned a PSD, but my neighbor did for several years. I "suffered" with him through all the maladies, and not one of them was due to the oil he used. He tried both dino 10w30 and T6, and saw no appreciable difference whatsoever.

There are many UOAs here that show 10w30 dino will shear LESS than a 15w40, and no more than a syn would (depending upon brand, etc).

The DieselPower link you provide is, to be blunt, worthless. I've subscribed to that magazine for years, and while I enjoy some of the features, the "technical" articles they write are full of mythology, rhetoric, and often mistakes. Of note, their comments on lubes is often fraught with silliness that they never substantiate with data or credible sourcing, and only espouse marketing prologue.

Originally Posted By: FordF150
It is a pretty generally accepted practice to use synthetic oil in Powerstroke Diesels ...

Yup - I'd agree that phenomenon is a pretty good generalization. But I'd disagree with why it's prevalent. I've not seen proof that dino causes the problems you infer, nor any proof that syns avoid the issues. It's a knee-jerk reaction to blame the lube for most engine ailments; it's easy for folks to change, it's easy to "upgrade" to a different product, and it's often VERY difficult to pinpoint the root cause for many folks. But as roadrunner1 has indicated, the two greatest problems facing the 6.0L is the FICM being effected by weak batteries and the oil/coolant heat exchanger plugging up, which cascades downhill into EGR coolers failing, heads overheating and stretching TTY headbolts, etc. And no lube is going to make any of that better or worse.

 

[TiredTrucker]

A Schaeffer rep near me has convinced me to give a few runs of Schaeffer 9000 full synthetic thru the Detroit engine and see what the results are. He can get it to me, in 55 drum, for $19.04 a gallon delivered to the front door free of charge and throw in free oil sample kits also. Seems like a good deal.

I saw no appreciable differences between the Delo 400 LE 15w40 conventional and the Delo 400 LE 5w40 synthetic. So we'll have to see how the Schaeffer plays out.

My biggest issue that has cropped up in the last year, is biodiesel fuel dilution. The internals are fine, and the only diesel in my area seems to have 5% - 11% bio mix. I have been getting some fuel dilution that we can only reduce down to the fact of the bio. Have come across a lot of articles recently, even from the bio producers themselves, that bio fuel dilution is showing up more frequently. It has caused me to have to back up to the OEM recommended drain intervals to keep things in check. If it's not one thing, it's another.