I see several have looked at your post and none have listed reasons for not a good idea, so...

Never heard of the oil you mentioned.
Do not need to use the (Ford Oil List) but it is a darn good list of oils that Ford likes.
T4 on its own is a good oil for about 3000-5000 miles depending on what you are doing, I however would say closer to 3000 miles usually.
The 7.3 does not suffer from the ash issue that the newer ""EPA"" junked up engines do, therefore a bypass would not do much if any good.
A bypass filter only takes the filtration of particles down to about 5 microns or somewhere around that depending on the system and filters you use. The bypass filters do not add back into the oil what you need, that being the anti-foaming agents, hydraulic durability, or even the additive packs.
Adding additive packs or other type of additives is frowned upon in the 7.3 as poor engine running results usually follow.
Additives are mentions often and usually shot down just as fast.
A high quality synthetic oil and a quality FL1995 change can be had for about $120. Just did one last weekend.
I have not priced a new 7.3 engine setup but to me oil is cheep.

 

the filter I chose, goes down to 1 Micron.
From their website: 1 micron bypass oil filter systems provide the best protection against engine wear, oil degradation, acidity, rust, and corrosion.

the filter I chose:
"EXTREME2" Universal Bypass Oil Filter Kit

the oil in the engine now, as stated is Rotella T4 semi-Synthetic 15w40

the 5 gallon bucket that I bought, when oil prices were sky high:

Lorenzo's Oil SAE 5W-40 Nano Tungsten Disulfide (WS2 - Diesel Engines)

Advanced Nano WS2 Full Synthetic 5W-40 Heavy Duty Diesel Engine Oil 5 GALLON PAIL Shipping included in price.

insanediesel.com

I plan on get an oil analysis at 5,000 miles, which is 3200 to go yet.

Most of the year, the truck will be daily driving, with 1 or 2 trips pulling a 9,000 lb Toy Hauler at about 2,000 miles round trip.

 

A good idea is to send that off to Blackstone when you do change the oil. The biggest factor on oil for your 7.3 is the HEUI system. It's hard on oil so almost no matter what about 10k is as far as I would go. I like changing my oil every 5k for ease of remembering what/when maintenance is due. Been doing it that way on the 6.0 and now my 6.7.

 

Life with a 7.3 (I used to own) differs from a 6.0.

In the early part of the century, most of my time was spent at what is now called TheDieselStop. Within the 7.3L PS community, the subject of bypass oil filters and extended oil changes was highly discussed. And marketers bringing in their brand of bypass oil filters, no matter the quality, was often done. And as we know, it's an oil subject with many opinions.

Blackstone oil analysis was done by many, so I took the challenge to take everyone's data and put it into a spreadsheet where we could continually observe how everyone was doing and make some informed decisions about oil bypass filters and how the different oils performed. Keep in mind that oil formulations have changed.

When the 6.0L came out, and I bought one, I did it for those people as well. We quickly determined the 6.0L sheared its oil, primarily because of the change in the injectors. So while both engines were HEUI, there were very different changes in the oil viscosity with more prolonged use. So no extended oil changes with the 6.0L.

Anyway, I still have those spreadsheets in pdf format. So here is the last spreadsheet I made. Assembling all the data was a considerable time black hole, especially once two engines were involved. And I could not continue to do it.

 

thanks a lot for the Spreadsheet, I too am a believer in Spreadsheets for keeping long term data. That spreadsheet is humongous and going to take a lot of time to digest.

On my Goldwing forum, where I am the Administrator, there is/was a lot of opinions and bragging about who could get the "best MPG", and I kept telling folks, that over the long term, the braggarts could not defend their "high mpg" claims.... that is, they claimed they "always got 40 mpg". The high mpg folks would select a one tank situation getting 40-42 mpg and not reveal the extremely low speeds they were driving in twisty areas, and denegrating the guys like me who lived in the greater southwest, where 80 mph in a straight line for 100 miles was the 'real thing'.... that is comparing Apples to Oranges and it just does not tell the whole story.

My spreadsheets proved that over a year's time and many thousands of miles, over a lot of different terrains and speeds, the "real mpg average is 33"

As I am brand new to the Ford arena, and the various types of Injectors, I have to ask a lot of questions.

My previous diesel was a '98 Dodge Cummins 4x4 dually, and it seems that is a "whole different animal" than the 7.3L PS engine.

 

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Page 54 has the abbreviations. Print that page and you should be good to go.

The data was supposed to be confidential, so I assigned vehicle IDs to each truck and kept the people (handles) off the spreadsheets. Some people had more than one truck. However, I was A001.

 

Also, the blue background ppm calculations were mine. With the mileage variance, I did not feel the Blackstone numbers were as telling as I thought they could be. So I had rows where the amounts were corrected to the mileage. One of the problems with the oil analysis was when you took an early mile reading; it could be high-loaded in metals/elements or degraded in the other traits as there always was carry-over oil in the HPOP and lines.

 

Sorry for adding the bad info about the HEUI stuff. I was under the impression the 7.3 and 6.0 had the same oil shear issues since they used the same system. I'm just knowledgeable enough to completely confuse a new guy lol.

 

No problems and I appreciate the detail, and your time spent in recording the data, and in providing me with answers.

I am liking this forum more than the other diesel forums that I have visited

 

>>That spreadsheet is humongous<<

Yeah, a lot of data there.

For a time, the director I reported to was a Ph.D. in Material Science who had worked for Ford's Experimental Research. It's a separate group from the standard engineering of vehicles to expand corporate knowledge, actual R&D. One day, I showed him the spreadsheets for both engines. He said he did not think Ford had ever accumulated such extensive data on engine wear over the long term and for extended variables.

So a community forum can be a place where a lot of good data can be collected. It doesn't have to be a package of 20 post threads of varying opinions without basis, repeated over and over.

There are times my R&D background comes in handy. And so does 20-year-old data occasionally.

 

I have the Insane ByPass oil filter on my truck. My son has an '06 Dodge Cummins and a ByPass filter on his truck. All he does, is change filters and tops up the oil again. Most of the oil filter discussions talk about dino oil and 5k oil changes. I know of OTR companies that never change oil, they use ByPass oil filters and chg filter and top the oil. The crux of my question here is, using Rotella T4 15w40 now, will the ByPass filter procedure be okay? Oil is expensive, but repairing the 7.3L is more expensive. I use Blackstone labs for our car, they report annual changes at 15k miles to be okay, running Synthetic 5w30 in it. But, that is a gas engine. I have a 5 gallon bucket of 15w40 Insane Diesel oil which they say is Rotella T4 with additives, just don't want to use it before it is needed.

I have a 2002 7.3. I only run Amsoil and use their double oil filter. Around 15000 miles I’ll remove the standard filter and replace it with a new one. Then around 30000 miles I change everything!! I also put Archoil oil additive with the oil change! Amsoil is 100% synthetic! That’s what I would recommend! Also the Archoil helps with Steichen !!

 

I use a Amsoil and the bypass system from Amsoil 5w-30 series 3000. I haven't changed my oil in ten years I send a sample of oil periodically and Amsoil will tell me when I need to change it.

 

and your truck is the 7.3L also?
thank you for the " agreement with what my son tells me he does " and he is also a diesel mechanic, only difference is he has a '06 3/4 ton Cummins with ByPass oil filter."

My gut feeling is using modern Synthetic oils is far superior to the old Dino oils we used to use.

 

Pretty much.

 

I know there are more opinions about oil and filters than Carter has little liver pills, so here's mine. I have a 2000 7.3. Bought it with 80 k on the clock now has 150,000. It has an appetite for oil... a quart about every 2,500 mi. Insasmuch as the prior owner used it to tow his heavy boat, and wasn't a mechanical sort, I assume he always shut it down hot, and didn't let the turbo cool out has a lot to do with the consumption, unless that amount is normal(?). Anyway I switched to 5W-40 Rotella T6 when it first came out. Did that for a year or two sending samples to Blackstone every change. Mixed highway and city driving, no heavy trailer work. Got up to 7k on the oil drain, still was comming back good.
My experience as a former fleet manager had made me aware of the Fleetguard ful-flow oil filters which have a byass section about 1/5 the height of the full flow element. On the Cummins BC-IV's this was the only filter. Sooo, when I found out Fleetguard makes them for the 7.3 application I made the purchase (case was the only way at that time). Using the T6 and the Fleetguard LF90127 I am out to 9,000 on oil changes with good numbers on the Blackstone sheet. I know there will be many comments and opinions about how I am ruining my engine because the HEUFI needs good clean oil changes at 5,000 mi, but the numbers don't lie. Metals and solids are the same as they were with 5,000 changes and regular Rotella T 15W-40.
BTW I have a bunch of those filters I will never need in case anyone wants one, contact me offline.