CK5
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Unleaded gas in a duramax

Wouldn't doing that in the 6.5s, mess with the optical eye thing in the injector?
 
Right on!! Just learned somethin new today :waytogo:

As for burning the tranny fluid ...can you smell it? I absolutely HATE the smell of tranny fluid and if it smells like that i'd rather not burn it :dunno:
 
I have put 8 ozs of atf in every tank (20- 25gals) forever and never had a ip failure. Its because the atf is great for replacing lubrication quality that was removed in the mid 90s (thanks Al Gore) and when I (yes dumb) put 8 gals of reg gas in my 2003 duramax once, I put two qts of ATF in the tank to thicken up the gas so the pump would not cavitate. It cant pump the thinner gas. Drove another hundred thousand miles with it with no issues.

BUT on my VW TDI I can't run atf in it. Seems the new diesels with cat converters can't take the ATF, supposedly it gums them up, so I would just put a quadruple dose of Lucas diesel, or one of the other oily diesel additives to do the same.

Just my opinion with 250 to 300 k miles on four or so past diesels; Bailey
 
friend runs amsoil 2 stroke oil in his 6.5 and really made it run alot smoother. I think you need to ashless variety
 
The gas will drop the cetane value a couple points. most diesels will tolerate it. By adding a little ATF it should offset the gas.
 
i was told by a tranny guy once, that atf has abrasive qualities b/c of clutches and whatnot, i had asked him if a couple of qts. of 90-110w gearoil would thicken the trans fluid and make the tranny pull harder,..it was for a derby car, thats when he told me compared to lubrication properties of oil..atf has abrasive qualities and the gearoil would thicken the atf but b/c of its lube properties it wouldn't help it pull harder for long b/c it would make the clutches and bands slip, so why not put oil instead of atf in the accidental gas?
 
With the new 08 emission diesel engines it's not just a cat, they regenerate now.
Mostly by putting raw fuel into the exhaust. Some do it by over fueling the injectors, others by injecting it into the exhaust with a 7th injector or big azz spark plugs and a fuel and air nozzle.

Using the wrong oil or putting additives in the fuel will kill a system.
I had to sit for weeks in classes for Cummins, Mack & Volvo DPF systems.
IIRC 5% was the max for mixing bio-fuel with the new engines.

One of the biggest concerns is an uncontrolled regeneration AKA the china syndrome. That's where the DPF takes off and you are unable to stop it.
The exhaust outlet temp of a regular regen is about 1,100 deg.

Here's a Ford with regen issues.
http://www.youtube.com/watch?v=-dKLKm5i2ic
 
If you look under the back of the new duramax's you'll see this funny looking trumpet thingy on the end of the exhaust. GM put that there as a passive exhaust cooler so that if your truck starts to regen in the mall parking lot you won't light some little old lady who happens by on fire.

I'd worry about the cat and DPF if you put anything other than ULSD in the tank. They are pricy and sensitive parts. They don't even tolerate old "high" sulfur diesel for long.

Keep a closer eye on your "friend" next time. :D
 
If you look under the back of the new duramax's you'll see this funny looking trumpet thingy on the end of the exhaust. GM put that there as a passive exhaust cooler so that if your truck starts to regen in the mall parking lot you won't light some little old lady who happens by on fire.

That made me laugh :haha:
 
Actually they aren't supposed to re-gen under 5 mph. Peterbilt burnt a couple to the ground during testing when the trucks were parked and idling, set the sleepers on fire and the rest was history:eek1: The "cone" on the exhaust is supposed to pull more air through to keep the heat from burning the paint or other things.
 
Not being able to do a parked regen is the reason a lot of school buses and pick ups are getting brought in on the hook.

They do not get driven long enough at speed or under load to get the DPF hot enough to regen.
The days of driving your diesel rig as a grocery getter is over if you buy a new one.
Volvo and Macks have the ability to initiate a parked regen. Unless it is a tanker or some such rig.
All the Roadway, USF Readyway rigs don't have this option and as they have a lot of in town rigs they are always coming in on the hook.
Woohoo next year they get the piss tanks too.
Urea will be injected also to further reduce emissions. All that will be leaving the tail pipe is water vapor and CO2

Aint progress grand ?
 
Not being able to do a parked regen is the reason a lot of school buses and pick ups are getting brought in on the hook.

They do not get driven long enough at speed or under load to get the DPF hot enough to regen.
The days of driving your diesel rig as a grocery getter is over if you buy a new one.
Volvo and Macks have the ability to initiate a parked regen. Unless it is a tanker or some such rig.
All the Roadway, USF Readyway rigs don't have this option and as they have a lot of in town rigs they are always coming in on the hook.
Woohoo next year they get the piss tanks too.
Urea will be injected also to further reduce emissions. All that will be leaving the tail pipe is water vapor and CO2

Aint progress grand ?

Yup - passive Dpf's don't belong on a school bus period. In addition to the low duty cycle, they are idled for long periods of time in the cold weather.. the DPF literature says in bold print " extended idling and low duty cycles will result in premature clogging". Only way out is to remove the DPF and cook out the particulates.

Any district I talk to, I steer them towards the oxidation catalysts, as they don't care about duty cycles..sadly, the filter makers get more money for the dpf's, so they get pushed as the "be all - end all".
 
I heard that Cummins or somebody can't do regen cycles with the vehicle in motion on their line haul trucks. When the time comes the driver has to pull over and do a stationary regen. I'm not sure if that is a fact, but I did hear somebody say it.
 
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