So you’re saying if you had stayed in Commiefornia your truck would have survivedFwiw, it was also sitting for a week or so, not just overnight, so it was definitely cold.
No idea if that did it, but pretty dumb of me if that's the case.![]()

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So you’re saying if you had stayed in Commiefornia your truck would have survivedFwiw, it was also sitting for a week or so, not just overnight, so it was definitely cold.
No idea if that did it, but pretty dumb of me if that's the case.![]()

Fwiw, it was also sitting for a week or so, not just overnight, so it was definitely cold.
No idea if that did it, but pretty dumb of me if that's the case.![]()
So you’re saying if you had stayed in Commiefornia your truck would have survived![]()

I’d almost guarantee that is the root case of your bottom end failure. 15w-40 is for 20* temps or higher per Ford.
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It probably would have burned up, just in a different way
We run 7 6.7 fords and 6 newer duramax's plus a bunch of other diesels on 15w40 all year. No issues so far, but usually not ran that cold with no block heater I guess.
I personally would not run it year round. Even Cummins specs a lighter weight oil below zero with a strongly worded callout.
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The ISL and ISX work trucks get 10w-30 per Cummins for our region. Northern IL.
No. I generally always run 5W-40 T6 which is what the second one was. Sometimes I step it back to 15-40. The first one was whatever my buddies shop has in his bulk tank as the truck was there for other work.Did you run the same oil for both changes?
Without running the same oil consistently you're not going to catch any little changes on a used oil analysis. I agree with the lab that those numbers don't show anything concerning.No. I generally always run 5W-40 T6 which is what the second one was. Sometimes I step it back to 15-40. The first one was whatever my buddies shop has in his bulk tank as the truck was there for other work.
About to crack 130k
Consistently now on cold starts, the first one or two shifts flare. I had transmission issues early on, still under warranty, so I think fluid is about 90k miles old (have to check my log).
Should I just go straight to a drain and fill with filter replacement? I'd just rather not pay dealer diagnostic time and wait the eternity it takes them to get through it... but don't want to smoke a trans being dumb.
I figured if it didn't fail after the nuclear temps at 40k miles prompting the warranty service that it would be fine.
I'm dropping it off at the dealer tomorrow... no time to do it myself these days. I'll let you know if a drain & fill + filter change does anything.MIne has done that for about 20k miles. I'm reasonably convinced it's eventually going to die but also not convinced a solenoid pack will fix it. I have a couple grand set aside in case it does go.
mine has done that since like 200k, and I'm about to hit 296 ish. Every now and again when its cold it will straight up not make the 1-2 or 2-3 shift until I back out of it, and very occasionally it'll shift out of gear and not into the next one, but generally only on the hill pulling out of my driveway, so its not a big hinderance, and it hasn't gotten any worse in a long time, although I'd like to know the fix.
In other news, I know they are gimmicky but given the miles on this motor and the lack of internal work its had done (as in nothing other than oil changes and turbos...) I've done blackstone for the last two oil changes. Anybody more in tune with the chemistry see anything concerning here?
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Your results make me concerned about my fuel dilution even moreMy fuel dilution crept up. When they mention chromium, are they saying it’s maybe coming from cylinder wall wear due to the rings sticking?
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6r140 or the 10 speed?I'm dropping it off at the dealer tomorrow... no time to do it myself these days. I'll let you know if a drain & fill + filter change does anything.
10 speed6r140 or the 10 speed?
My 6r does that on the 2-3 upshift. I have a sonnax zip kit collecting dust waiting on time to open up to throw it in. Was gonna replace all the solenoids and the harness while I had it apart.
Truck was deleted until recently. That first sample was the last oil change deleted, and the second one is the first interval with the DPF installed again.Your results make me concerned about my fuel dilution even more
What's your use like? Any extended idling? Highway, city, towing?
Sounds fairly similar to my use case, other than deleted part.Truck was deleted until recently. That first sample was the last oil change deleted, and the second one is the first interval with the DPF installed again.
Most of the usage is my 35 mile commute one way empty on backroads, with towing every few weekends, most recently with a 33ft Goose trailer. I used to idle it a lot when it was deleted, but not like a company truck or anything. Now I try to limit it, but not unusual to idle 30 minutes a day or so for phone calls. Also does a fair bit of plowing in the winter. So far from hot shotting it, but also not suburban soccer mom duty either.
That does lead me to another question for the class.... I reinstalled the DPF and the DEF/SCR systems, including a new DEF pump and heater, and I can hear the DEF pump run so I know its doing something. That being said, I haven't got a add DEF warning yet. I went 5-6k with 3.5 or so gallons in the tank because I screwed up the filler neck and didnt feel like fixing it until next time I had it on the lift. When I fixed it I put the rest of the 5 gallon pail of DEF in it. How far should I expect this thing to go on DEF?Sounds fairly similar to my use case, other than deleted part.
I wonder if your fuel dilution will creep up with the regen occurring now. I am assuming that’s what’s occurring with mine.
If it's not regenning (that you can tell) and not using DEF (your concern) why would you think its all working well?That does lead me to another question for the class.... I reinstalled the DPF and the DEF/SCR systems, including a new DEF pump and heater, and I can hear the DEF pump run so I know its doing something. That being said, I haven't got a add DEF warning yet. I went 5-6k with 3.5 or so gallons in the tank because I screwed up the filler neck and didnt feel like fixing it until next time I had it on the lift. When I fixed it I put the rest of the 5 gallon pail of DEF in it. How far should I expect this thing to go on DEF?
And second question, I have not noticed it in regen yet. At first I figured I was doing enough hauling and highway time that everything was happy with a clean DPF, but now 8k or so in I'm suspicious. Not to say it hasn't done a regen, I just haven't noticed the EGTs get anywhere near hot enough for that to be happening, and 2011 as far as I know has no message or way to force it to regen without a scan tool much fancier than mine. How often would you expect it to regen, and is there any way to tell if it has besides watching EGTs and weird smoke? My only thought is my EGR is still blocked and I returned the programming with the original minimax to a stock based tune, so I wonder if the EGR codes are blocking regen? I check every so often and the only codes in the truck are EGR related.
Yes I know the internet says blocking the EGR with the DPF is bad. For the moment its working fine that way, I know I am risking a plugged DPF/SCR (although in my head the EGR would be causing more particulates than it eliminates, but I am willing to admit I don't know what I don't know here).
I have no idea if the emission control systems are working well, and I admit that. What I'm asking is how do I verify those concerns (verify DEF usage and Regen without a professional grade scan tool/forscan on a 2011)? When I say its working well, I'm talking the overall engine - Its running fine right now, and all of the live data that I normally watch is within normal ranges, but I'm aware that if the emissions systems are installed but malfunctioning, eventually I will have caused a problem. I put the emissions back on (except the EGR, which is still in the truck but blocked) because I was starting to run out of people to sticker the truck, and with the way my state has been threatening inspectors lately, I don't blame them. Even with the .gov scaling back their enforcement that is realistically temporary and the state isn't going to give up anyway.If it's not regenning (that you can tell) and not using DEF (your concern) why would you think its all working well?
On the trucks at work you can check def system functioning by checking nox inlet vs outlet values.I have no idea if the emission control systems are working well, and I admit that. What I'm asking is how do I verify those concerns (verify DEF usage and Regen without a professional grade scan tool/forscan on a 2011)? When I say its working well, I'm talking the overall engine - Its running fine right now, and all of the live data that I normally watch is within normal ranges, but I'm aware that if the emissions systems are installed but malfunctioning, eventually I will have caused a problem. I put the emissions back on (except the EGR, which is still in the truck but blocked) because I was starting to run out of people to sticker the truck, and with the way my state has been threatening inspectors lately, I don't blame them. Even with the .gov scaling back their enforcement that is realistically temporary and the state isn't going to give up anyway.
Use their stiction eliminator on a high mileage and neglected ford 6.0 and a cat 3126.Who's got any opinion on "Hot Shot Secrets" products? Snake oil?