New International A26 12.4L Engine

I got the oil sample back running the bypass. The sample isn’t all that different regarding wear metals and insolubles (soot), but the TBN retention is strong and TAN is much lower than any other sample, and this one had 10k more miles than my usual 20k mike sample. I’ll have to ask them how small of micron they go when they test for insolubles, but the amsoil is obviously keeping it out of the oil so it’s not turning acidic as fast. Wear metals are in the single digits.

 

I posted this in my other thread

Filled up today, longer than usual between fills. 2525 miles, 9.1 mpg, 7.5% were empty miles, 57k PA to AR, 76k AR to MI, 72k IN to Effingham.

I have two recalls right now, the exhaust pipe clamp(s) and an ECM update for the emissions controller. It’s at the dealer for that and oil change. I’m very impressed with the A26.

 

Fuel mileage since May 1, if I go back farther it will say something crazy, like 200 mpg. Something is up with their portal. I get .17 less than what this says, or 9.29 mpg for the period.

 

How many mpg DEF did you have since May 1?

 

I don’t keep as close an eye on DEF as the mpg. It seems that no matter what my fuel mileage is, the DEF usage is consistently around 900-1000 miles per quarter tank.

 

I went and looked at my last email in May to the permit service. I ran 11k miles, per the ELD, and used 60 gallons of DEF. ELD miles are different than what I post, because I go buy what month the load delivered in. Comes out to .015 cpm.

 

Also, the ELD pulls idle time from somewhere, and it’s not correct. It consistently says I’m at 30-50% idle time. When I do a real ECM download it shows 8-9%.

 

Avoiding the SCR is exactly what killed it, it required massive amounts of EGR flow to control the NoX without being able to use DEF .. Very very stupid decision....

 

I would curious to know how much of a mileage falloff you would have running 65mph.

 

You might lose a .3 mpg depending how hard you’re trying to maintain 65. I don’t use a lot of power and always minimize my boost. Last quarter MPG was 9.01.
If you’re really gunning it trying to maintain speed on every hill, that’s going to have a bigger impact.