Archived Gasoline in Diesel Fuel in Friends Duramax???

[cerberusiam]

They have had a lot of training with the 6.0, 6.4 and now the 6.7 powerjokes.

Have had, or, haven't had?

Training on operations is one thing, training on failure assessment is highly doubtful. They get training on hooking up the computer and following the decison tree for troublshooting and basic system operation, not much in the way of root cause assessment. They will be told that bad fuel will casue the failures. If the instructor is candid he will point out that there is not a good metric for how long the bad fuel has to be there or the variations of bad fuel and the subsequent damage. These training classes barely cover the complexity of the operations, beyond that it is the individuals initiative to learn more. Even then, if management says bad fuel and the tech disagrees there is little doubt of the outcome.

It is not that all techs, or even most, are bad at assessment and resolution. It is the fact they are frequently placed in a bad situation that is a no-wim scenario.

Ford is not doing anything different than Dodge has or is doing, bad fuel will always be the FIRST thing they check and if there is ANY question that is the determination, case closed, owners responsibility.

GM will get to that point after enough replacements cost them enough $$, did it before, will do it again.

 

[SnoKing]

Kool Aid Training, not technical training!!!!

 

[Buffalo]

Thank you, all, for the replies. My friend, his brother & I all appreciate your help in this matter.
Good news is that the truck is running very well with no indication of any damage or any changes in performance. He says that it runs at least as well as it did before the addition of the gasoline. Along with the Stanadyne, he heard that a few ounces of "two stroke oil" would add even more lubricity to the fuel so, that is what he did. He & his brother have driven all over the mountains (hundreds of miles) and occasionally stopping to add more fresh diesel fuel to help dilute the gasoline. Today, they are going to change out the fuel filter & open it up to see what it looks like. Then, on for more driving to use up as much diluted fuel as possible. The hope is there won't be any long term damage that has not appeared, yet. My friends & I have all learned a lot from this experience &, again, we all thank you for your help. The biggest lesson is to watch which nozzle you grab at the fuel pump!!!!
Joe F.

 

[SnoKing]

Depending on the year(2007.5+), adding 2 stroke oil might not be a good idea. I have done it for years in my 2001.5 starting with the ULSD release! SNOKING

 

[cerberusiam]

Good news is that the truck is running very well with no indication of any damage or any changes in performance.

What was the cause of the no-satart, just a glitch or one of the typicall GM sensor failures?

Yes, adopting a "be here now" attitude when fueling might be considered a best practice.

 

[Buffalo]

Well, I just got off the phone with the two guys with the Duramax that had the gasoline in the tank. They have run about 60+ gallons of fuel thru it since the introduction of the gasoline & the truck runs just great. The engine is smoother at idle than before the gas treatment & it starts immediately, all the time, now. They cut open the fuel filter (two stage) & took pictures of it & it looks pretty clean. Not loaded with junk from the tank like expected. He has been running Stanadyne Performance Formula & Lubricity Formula on a regular basis, which, may explain the clean filter. One of the local dealerships I called said that the gasoline was not compatible with diesel fuel & that it would "pool-up" or "clump" within the diesel fuel and that he thought when the fuel tank pick-up hit a load of gasoline, the problems would really surface. My friends got a clean glass bottle & put some diesel fuel in it & added about 20% gasoline (which, was what was put in the fuel tank) & the gas did NOT clump-up in the diesel. Later, they added some Stanadyne & shook it up to see what would happen, Again, nothing out of the ordinary. The gasoline & Stanadyne blended into the diesel beautifully without any indication of separation. It has been sitting in the bottle, outside, for a couple of days, now. Temperatures have gone into the twenties at night where they are camped. Still no clumping or pooling-up of the three products.
Bottom line is that I wouldn't recommend running gasoline in the diesel but, in their case, nothing catastrophic happened. My friend insists that the truck engine never ran better than now!!! But, he does also admit that he feels that he dodged a big bullet with this experience.
Thanks for your input. Sorry it took so long to get back but, I didn't find out the results til this evening.
Joe F.

 

[cerberusiam]

So many stores and predictions of doom with gas in diesel. Makes me wonder if these so called experts have ever opened the hood of a vehicle or looked at any fuel content.

 

[DieselLady]

It would be nice to know what year this d max is. The newer ones with a DPF would not fair well with 2 stroke oil. Can cause more soot in the filter.
I can only assume that the CP3 would not pull fuel as well if it is diluted with gas. But I have had an 08 in my shop with a small amount of Gas in it and you can hear the difference in detonation as it sits and idles. Drained the tank to be safe as it only had a third left, then added straight #2 and primed till we got the rest out of the system. Ran fine after that.
BTW, the dieselplace.com has a lubricity study that they commissioned, here is the link. It is a good read, and some of these additives can surprisingly make the fuel dryer than before. Here is the link. ") http://www.dieselplace.com/forum/76.../177728-lubricity-additive-study-results.html