2004 PSD Advise

[GeorgiaCracker]

I have a 2004 6.0 PSD with a chip and catback running 408 rear wheel horsepower. The timing is advanced throughout the powerband. The speed delimiter is off and it has been dynoed at 135mph.

I run 90% of the time between 75-85mph with forays into the 110-120 range for short burst.

I am currently running Delo 400 15w40 and changed the oil at 1000miles, 3700miles and 7000 miles. Changed the filter with Motorcraft OEM.
I add Stanadyne Performance Formula each 30 gallons to the tank.

I am willing to change my oil as needed. The stressors that I have presented in the background information should help the oil gurus on this board give me some good advise. I am not looking for extended drain intervals, nor do I want to save money. I want wear resistance and performance optimization.

I was considering Delvac 1, Schaeffers 7000(I have some experience with them) or perhaps their #151 MolyBond unless for lubricity unless the soot control is not there. I want slick and efficient so I would change the oil every 3000 miles if needed.

I know this is a somewhat different set of objectives from many on this board, but I am interested to see how the informed members here would choose an oil.

Any advice would be appreciated.

 

[Bio-T]

Welcome to the site. I do own a 95 and 01 PSD, but unfortunately you can out pull and out run both of mine in your stock form. As far as oil is concerned your 6.0 now has the recommended oil change intervals at 7.5K instead of the 3-5K on the 7.3L engines. But you also are the beneficiary of an EGR system in the 6.0 which requires CI rated oil.
Now with the addition of your mods you are a rolling Soot Generator and the increased HP puts allot of stress on the engine parts. So you are now fighting more soot in the oil and more stress and wear on the engine. With these factors in mind, I recommend the Delvac I 5W40 full synthetic oil changed at 5K intervals. Also do an Oil Analysis every 10K, or every other oil change to see if you are getting fuel blow-by on the injector O-rings.
Sounds like you are running a TS, Edge or Quad Chip as your RWHP is up over 115 HP over stock numbers. Can you see me drolling?

 

[JohnBrowning]

I think synthetic HDDO is the only way to go. Either Delvac1 5W40 or Amsoil 15W40 Diesel oil or Redline 15W40 Diesel oil.

 

[GeorgiaCracker]

Vetteman,

I have a TS Performance Instigator generating about 140 RWHP above stock. It advances the timing somewhat so there is more noise but it does not generate a lot of smoke. I have been observing the "break-in" discussions on several threads of DieselStop.com and have decided to start using a synthetic (or blend) at my next change (about 10,000).

My post here was an attempt to see if any of the analysis enthusiast had experience with upgraded diesel wear and tear and/or with varying types of oil applied under high performance loading. Of course, the additional stress only occurs under WOT or robust throttle application.

Delvac 1 comes up during most discussion of this nature. I have no experience with Redline or Royal Purple so I dont know what they bring to the game. If I were going to keep the truck for 10 years (like I have my Bronco 190,000 mile on Schaeffer running like new still), I would consider the bypass filter. I trade every couple of years so that is unnecessary.

Mostly, I have a maintenance gene that requires that I treat my machinery better than my body so I am pretty anal about the oil changes, etc.

 

[Jelly]

Unless you extend your drain intervals way out, I don't believe you can get much better protection than a $6/gallon 15w40 HDEO:

Chevron Delo 400
Mobil Delvac 1300
Pennzoil Long-Life

Just my two cents...

Of course, if you extend the intervals out a bit, then other "fancier" oils make some sense:

Delvac1
Amsoil
Redline
Schaeffers

 

[toyvwbenz]

For this application I would be shopping for the highest ht/hs #'s I could find in a CI-4 rated oil.

Delvac 1 5W-40--- 2.90
Petro Canada 5W-40--- 4.20
Rotella T 5W-40--- 2.90
Amsoil 15w40--- 4.10
Delo 400 15w40--- 3.70
Delvac 1300 15w40--- 4.30
Pennzoil LL 15w40--- 4.30
Redline 15w40--- 3.70
Rotella T 15w40--- 3.70
Valvoline 15w40--- 4.23

For a short drain interval Delvac 1300 and Pennzoil Long Life look better. Also, easy on the wallet.

 

[Jelly]

Those numbers can't be right...

[ December 06, 2003, 11:11 PM: Message edited by: Jelly ]

 

[rugerman1]

to the forum!The ones you listed are all excellent,IMHO.I'd like to see some Redline and Royal Purple diesel UOA's posted for comparison.
You mentioned slick and efficient ,to me that means bypass filter.If the oil is clean,it might just be "slick and efficient " too.

I'm sure the folks who actually run diesels will chime in here to give you advise.

Mark

 

[TooSlick]

I'd recommend the Amsoil Series 3000, 5w30 and not their 15w40 for the PSD. The S3000 is the more shear stable of these two oils and is extremely resistant to foaming ...

Latest data I've seen for the Delo 400, 15w40 shows a HT/HS of 4.59 Cp. Delvac 1300 is @ 4.54 Cp ....

How's the bass fishing? My father in law in Duluth, GA has a summer place down at the lake ....

Tooslick
Dixie Synthetics

 

[GeorgiaCracker]

TooSlick,

Great, if you will tell me what HT/HS means, I will be better informed. The fishing is always good at Lake Oconee if you know the right spots for the right time of year. I have been here 12 years and know the guides. So I know the honey holes and when to fish them.

If you just come out and beat the bank, you are going to get skunked.

 

[TooSlick]

It's high temp/high shear viscosity ....the actual test is called ASTM D-5481. Min spec for 15w40/20w-50 oils is 3.7 Cp @ 150C ....Min spec for 5w30/10w-30 oils is 2.9 Cp @ 150C ....

You heat the oil to 302F and run it through a tapered bearing simulator and measure the viscosity. The HT/HS viscosity correlates pretty well with the vis of the oil in the bearings. The optimum HT/HS viscosity depends on the appication, and higher is not necessarily better.

HT/HS viscosity is ONLY comparable when comparing oils of the same SAE grade. The Series 3000, 5w30 will run cooler than the Amsoil 15w40 (less "intrafluid" friction), so there will be only a minor difference in oil pressure. A cooler oil is better for the turbocharger bearings and all your elastomeric seals/gaskets. It sounds like you are running this engine under high rpm/low load conditions, so I think the 5w30 would be the stuff to try first, supported by some oil analysis testing. Wear rates for the S3000 and Amsoil 15w40 should be comparable ....

Delvac 1 is excellent stuff also and would be one of my top 3 choices for this application. I don't know enough about the RP 15w40 to render an informed judgement.

Ted

 

[TooSlick]

Amsoil data from 3/7/03 shows:


Series 3000, 5w30 , 3.6 Cp

Rotella T, 3.9 Cp

Amsoil 15w40, 4.2 Cp

Pennzoil, 4.36 Cp

Valvoline, 4.45 Cp

Castrol Dieselall, 4.46 Cp

QS HDX, 4.49 Cp

Delo 400, 4.52 Cp

Delvac 1300, 4.59 Cp

The synthetics can be formulated thinner, since they are more shear stable ...The new, EGR equpped, commercial engines really beat up conventional diesel oils.

TS

 

[GeorgiaCracker]

TooSlick,

Thanks for the lesson. I am new to the topic, so I am anxious to learn.

[ December 07, 2003, 03:27 PM: Message edited by: GeorgiaCracker ]

 

[toyvwbenz]

picked up the ht/hs #'s from this listing. Is this a case of bad info?

 

[msparks]

quote:

---

Originally posted by GeorgiaCracker:
I would consider the bypass filter. I trade every couple of years so that is unnecessary.

Mostly, I have a maintenance gene that requires that I treat my machinery better than my body so I am pretty anal about the oil changes, etc. [/QB]

---

A by pass would be my first choice and step regardless of oil. Though my oil choice would be Amsoil 5w30 HDD.

Good luck to you

[ December 07, 2003, 10:29 PM: Message edited by: msparks ]

 

[TooSlick]

GC,

As a point of comparison, I think the HT/HS of Delvac 1, 5w-40 is 4.0-4.1 Cp, so it's formulated about like the Amsoil 15w40 in terms of high temp viscosity. Again, it's a very shear stable formulation, so they don't have to a make it as thick as their Delvac 1300, 15w40.

Any of these synthetic or petroleum oils will give you good protection, so I was focussing on getting you the best engine performance and fuel efficiency ....

TS

 

[GeorgiaCracker]

I have read many discussions about when to start using synthetic oil in a diesel engine. A consensus seems to be at around 10,000 miles. However, I have witnessed some passionate discussions that supported using synthetics from day one.

If anyone has informed insights into this topic, I would be interested. I do not know what metal composition is being used for the rings on my 6.0, nor do I know how cylinder wall composition. I have read so many articles and heard so many discussion about engine break-in since my youth in the 50s that I am quite confused.

Recommendations with supportive rationales would be appreciated.

 

[TooSlick]

I like to go at least 5000 miles on a gas engine, and at least 10,000-15,000 miles on a light duty diesel before putting in a synthetic oil. When in doubt, wait a little longer - that's never going to cause you any problems, unless the engine requires synthetic from day one ....

You want to wait until oil consumption completely stabilizes before putting in the slick stuff ....

Ted

 

[Ken2]

Schaeffer says that their synthetic blend oil is best used from day 1.

Metal surfaces are never perfectly smooth. The high and low spots are called asperities. When two high spots hit with enough pressure, there is micro-welding. Then, the parts move apart and the welded parts tear off. The tearing causes micro fractures under the high spots, and these micro fracture zones are prone to increased wear in the future.

Schaeffer feels that their oil causes the high spots to roll over and form smooth spots instead of welding together. For this reason, they feel that the break in process with their oil will result in good break in and less future wear on the engine.


Ken

 

[boxcartommie22]

toy , delvac 1 5w40 has a ht/hs of 4.1