2007 6.7L Cummins...Does anyone use CJ-4 Amsoil ? How good is it ?
Haw many quarts with filter ? How about the Amsoil filter....is it a good filter ?

Will Amsoil help to control the soot ?

 

It is good oil. Expensive, but good. I ran the stuff in my 2004.5 5.9L, but won't in my 6.7L since the oil doesn't stay in the engine long enough to warrant the additional cost. Seems I can't get more than 4,500 miles on the oil before the "change oil" light, so I'm sticking with conventional 15W/40.

BTW - You do know you have started a "brand" war???

 

The change oil light runs off an algorithm, much like the oil psi on the dash, and is not a real indicator of when you need to change your oil...

 

Yeah, I've been skeptical of the message so I did an oil analysis each time the message was displayed. Surprisingly, the results from all three samples indicated that an oil change was needed in each case.

Go figure...

 

If the oil your using only last for 4500 miles then maybe you need to be buying better oil. Good quality oil should last for 7500 miles that is unless you idle lot or the truck only sees stop and go traffic.

 

I installed a bypass filter on mine. I am fixing to send in a sample to Blackstone with 15,000 miles on oil. Which is by the way Schaeffer's.

 

how much did that FS-2500 run ya, I'm looking to put one in my truck as well

 

how much did that FS-2500 run ya, I'm looking to put one in my truck as well

 

What indicated a change was needed? TBN, Soot?

FWIW: The Amsoil has a better filtration rating and is cheaper.

 

hmm, thats intresting, I thought the FS-2500 was better, I've seen videos of the FS at work it seems to clean up nicley and does not require any extra oil be put into the system I hear with the amsoil you have to run a few extra quarts in the system. When you change the filler element in the FS-2500 hardly any oil is wasted.

 

FS-2500 is 2.78 microns absolute, the Amsoil is 2.00 microns absolute....

More oil is a GOOD thing, runs cooler, lasts longer, etc... and any filter element will take extra oil, if it doesn't hold any oil it must not have much media...

And it really doesn't matter how much oil is "wasted" since generally you change the oil with the filter... The amsoil is rated for 60K miles or two full flow/oil changes...

 

Well those numbers sound convincing to me. If I went that route I would go with the double set up so I don't have to struggle to get my stock filter off. So basically you don't change the amsoil element but every 60k, you just change the full flow filter then. cheaper to

 

TBN was fine. Fuel %, silicon, and metals on first, metals on last two (but getting better). So after 14,300 miles the engine is almost in the normal wear range, so I expect the next sample to be normal after 5000 miles.

 

The dual remote mount and the ECU on the HPCR ISB don't agree, so you need to leave the OEM filter in the stock location.

Personally when I change the oil I change the bypass as well, on my truck. On my wifes 4runner I let the bypass go for 2 years, 2 oil changes.

Yeah... probably one of the reasons you shouldn't swap to synthetics until the 10-20K range at the earliest, especially on a diesel.

What filter are you using?

 

First two oil changes were done by the dealer using Mopar filter and conventional 15W/40 (Mopar oil I assume, whatever that is). I did the last oil change with Valvoline Premium Blue 15W/40 and a Mopar filter ($39.96 special at Advanced Auto). Also changed to fuel filter (what a mess) with a Mopar OEM ($10 Geno's).