ByPass Filter Question

[mt1949]

I currently own a 2014 3500 6.7. I'm putting a FS2500 Bypass filter on the truck and the instructions say to change the oil at 5K and then at 10K. and do oil samples, Which I understand to get all the
the garbage out of the engine. I'm presently using shell Rotela 15w40. After the filter clean out I was going to go synthetic. My concern about going syn at about 30K is the seals.
Should I just stay with the Rotela? Truck has about 19K miles.

 

[MichaelOverfield]

I'm pretty sure the truck comes with full synthetic fill from the factory, its needed in colder climates. I'd go full synthetic right away, I've been full on my '09 since new, now about 32k miles.. no issues. I do believe most engines are now engineered to run full synthetic from new.. my wife's VW TDI also came new with full synthetic, and had special oil to last 10K miles.. I run the Shell Rotella T6 5W-40 (full syn).

 

[mt1949]

By Pass Filter

I'm pretty sure the truck comes with full synthetic fill from the factory, its needed in colder climates. I'd go full synthetic right away, I've been full on my '09 since new, now about 32k miles.. no issues. I do believe most engines are now engineered to run full synthetic from new.. my wife's VW TDI also came new with full synthetic, and had special oil to last 10K miles.. I run the Shell Rotella T6 5W-40 (full syn).

Thanks for the reply. Since I have been running the Shell Rotella T since my first Oil change I plan on staying with it with the bypass for 5,000 miles, the instructions say to change after 5,000 to get all of the soot out of the engine first. Then run another 10,000 then I plan on the Amsoil. My question will it hurt the seals going with the amsoil. It's cheaper to
run the shell that is my reason to wait.

 

[MichaelOverfield]

Are you in a cold climate? If so I'd go with the Shell T6 (5W-40) now, don't use the 15W-40 conventional, even the owners manual will show the reduced temp range for the 15W-40. I'm not sure on the Amsoil, but you need CJ-4 (LOW ASH) is a must with any oil when you have a DPF. If you use the wrong oil that DPF will clog very fast and cause a long list of expensive repairs you definitely do not want.

As far as seals go, I would not expect any issue with them using an oil that is within the OEM's recommended parameters, the T6 is within the OEM's standards, full synthetic.

 

[AnOldBiker]

Get the truck up to operating temp for a while, then when you get it home, pull the plug and filters.
Let her drain at least an hour to let everything purge. Replace filters and fill it up.
You'll be fine.

It will leak if the seals are dry, old or cracked.
If none of these are present at this time, not an issue.

Just make sure your oil meets the requirements set my the manufacture. This is the critical concern.

 

[JR]

What happens is an engine that has been run with conventional oil for several years tends to leave trace amounts of deposits within the engine. The longer a conventional oil is run, the more deposits accumulate. Then the switch to synthetic is made which contains more detergents than conventional oil does and it loosens up the deposits in the engine, leaving the seals exposed. Sometimes leaks will show up, sometimes not. Synthetic oil itself does not cause any leaks.

 

[AnOldBiker]

With less than 20K on the clock, this shouldn't be any issue here.

 

[AH64ID]

No need to worry about switching to synthetic right away. I also don't see the need for that many bypass filter changes. It sounds more like an excuse to sell lots of filters.

If you are planning to run Amsoil why not get their bypass? It is generally cheaper, lasts longer, and a better rated filter.

Modern oils make soot removal much more difficult than 15 years ago so the tighter the filter the better the soot removal.

What happens is an engine that has been run with conventional oil for several years tends to leave trace amounts of deposits within the engine. The longer a conventional oil is run, the more deposits accumulate. Then the switch to synthetic is made which contains more detergents than conventional oil does and it loosens up the deposits in the engine, leaving the seals exposed. Sometimes leaks will show up, sometimes not. Synthetic oil itself does not cause any leaks.

Exactly! Synthetic doesn't create leaks it just exposes leaks plugged by cheaper oils.

 

[JR]

If you are planning to run Amsoil why not get their bypass? It is generally cheaper, lasts longer, and a better rated filter.

While I don't run Amsoil, I agree with your assessment on the bypass filter. I looked at them all when I built my bypass system and nothing else matched the filter efficiency ratings/service intervals.
The EABP filter is the best that is available.

 

[BIGNASTY]

You wont be disappointed with the FS2500

Ive had mine on very soon after I bought it new. My oil samples are still VERY GOOD, I like knowing how large the Soot particles suspended in the oil are. Like I said you wont be disappointed. As for using Synthetic oil.


NO THANKS

 

[JR]

Last I knew Cummins recommends 15w40 for ambient temps of 5*F and above. Caterpillar has similar conditions. Yes you CAN get away with colder weather operation using 15w40 but this is what is recommended. One of the limiting factors of conventional oil is largely due to the VI additives that allow it to be a Multigrade oil, you can only load conventional up so much with VI additives before they shear and break down causing the oil to thin out at high temperatures. This is one area tjat synthetic excels as they typically do not need high levels of viscosity improvers and will stay in grade over a wider temp range. Conventional is more than adequate so long as you stay within its operating conditions. Above or below and synthetic has its clear advantages.

 

[AH64ID]

Considering we have the smallest sump of any ISB and the most hp I would recommend synthetic to everyone, especially if you are tuned.

There are marine QSB'a with more hp, but they also have bigger sumps and marine duty cycles are nothing like pickup duty cycles.

 

[BLNRAY]

Also a big fan of synthetic,413,500 mi all on mobil 1 5w-40.I found an FS2500 filter couple years ago for free,never got around to instaling it,i pulled my injectors out last week to have them rebuilt the top end of my motor is cleaner than any motor i've worked on and i'm a diesel mechanic,my by-pass filter will probaly stay on the shelf where it has been for the last 2 years.have pictures but could'nt figure out how to post them.