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DEF is DEF, RJC2...just water and ammonia (urea) mixed at the same exact ratio. GM trucks can run any brand they want without issue.
I don't know, but you need to tell GM that. They're the ones that are telling him to run GM DEF only. Every single time he runs the Blue DEF or any other brand,,, into the shop it goes. This guy is 67 years old has never owned anything but GMC trucks his entire life. He's considering trading on a Ram because of this and the red fuel issue. (I really don't believe him)
I have another friend (my Veterinarian) who had a 2015 and now a 2016 Duramax who has the same issue. He traded the 2015 due to uncontrollable leaks, and also in hopes that the DEF issue would be cured with the new one. He now has a leaky 2016 that needs GM DEF, and isn't happy that he wasted his money trading.
Speaking of the red fuel. It would have to be Ultra Low Sulfur Diesel as all new farm tractors (over 30hp) now have the tier 4 exhaust on them. (with DPF)
I'm not disputing what's happening to your friend, but I've got several friends and an uncle with SCR-equipped Duramaxes, and they refill them at the truck stop. Never an issue.
This makes me wonder if the issue isn't a local thing. Possibly the dealership changing things to cause problems to keep their Service Dept. working, parts dept. selling DEF, and that it has done with these guys. Each of them has been caught in a pinch without GM's DEF and added the Blue. They end up in limp mode and in the Service Dept. every time.
Zero difference between Red and clear, other than the added dye. Get caught running in and fines into the thousands and possible jail time in the Federal pen. That said since its a Federal crime about the only way you would get caught is to run "Farm Truck" plates and have a LEO pull you over and do a fuel check. My buddy just went thru this the other day, in fact he was in court last week.
Farm plates in Texas lets him buy Red diesel, but (and now it gets real hazy in my mind) according to the law he is NOT supposed to drive the truck off his ranch (but then WHY have plates at all????). In this case he told the judge he did not have a diesel tank on his place and has to drive into town to get the red diesel. So he got off by the judge. Here the question was not red or clear, but that he was driving on public roads with red and it was a farm truck.
No, did not make sense to me either...
ALL diesel sold is ULSD and the same except the dyes.
What you want to avoid is BLUE diesel!!!! Get caught running that and expect al crap to hit the fan...
Zero difference between Red and clear, other than the added dye. Get caught running in and fines into the thousands and possible jail time in the Federal pen. That said since its a Federal crime about the only way you would get caught is to run "Farm Truck" plates and have a LEO pull you over and do a fuel check. My buddy just went thru this the other day, in fact he was in court last week.
Farm plates in Texas lets him buy Red diesel, but (and now it gets real hazy in my mind) according to the law he is NOT supposed to drive the truck off his ranch (but then WHY have plates at all????). In this case he told the judge he did not have a diesel tank on his place and has to drive into town to get the red diesel. So he got off by the judge. Here the question was not red or clear, but that he was driving on public roads with red and it was a farm truck.
No, did not make sense to me either...
ALL diesel sold is ULSD and the same except the dyes.
What you want to avoid is BLUE diesel!!!! Get caught running that and expect al crap to hit the fan...
I know the debate continues on this on a lot of diesel forums. Personally I don't burn it nor care to take a side.
BUT! In owning a True Value Hardware Store, I see a huge problem or issue with the dyed Kerosene. One word; DISASTER! It convolutes (or pollutes/clogs) the kero-heaters wicks, making them almost like "carbon'd-up" and eventually not passing kero up to the flame. This eventually happens anyways, just way more quickly w the dye and much more broad covered "carbon soot". These customers running the red dye Kero have to change their wicks twice as much (if not more!) than customers obtaining and using the more expensive Clear Kero.
So the red dye is certainly not an "invisible" additive, I'm sure it has petroleum characteristics, or it would't even have gotten this far in this situation.
If I remember correctly, some firm (like Donaldson?) was hot on the trail testing this dye. We (as our business) never carried through, we now just tell our wick replacement customers to seek and burn the more expensive clear kerosene.
The red dye is good for something anyways..... wick sales!
My company consumes over 1 billion gallons of diesel fuel a year for our locomotives and 95% of it is red, sometimes we see the clear when red is not available. All is ULSD for $1.30 a gallon.
I know the debate continues on this on a lot of diesel forums. Personally I don't burn it nor care to take a side.
BUT! In owning a True Value Hardware Store, I see a huge problem or issue with the dyed Kerosene. One word; DISASTER! It convolutes (or pollutes/clogs) the kero-heaters wicks, making them almost like "carbon'd-up" and eventually not passing kero up to the flame. This eventually happens anyways, just way more quickly w the dye and much more broad covered "carbon soot". These customers running the red dye Kero have to change their wicks twice as much (if not more!) than customers obtaining and using the more expensive Clear Kero.
So the red dye is certainly not an "invisible" additive, I'm sure it has petroleum characteristics, or it would't even have gotten this far in this situation.
If I remember correctly, some firm (like Donaldson?) was hot on the trail testing this dye. We (as our business) never carried through, we now just tell our wick replacement customers to seek and burn the more expensive clear kerosene.
The red dye is good for something anyways..... wick sales!
The difference between Diesel and Kero is the primarily length of the carbon chains. Diesel fuels have longer hydrocarbon chains, higher BTU content and are more tolerant of contamination (also they are allowed to contain more sulfur.
Then there is the combustion process: Kero burns slow and cool while diesel is under very high compression and generates high heat. As for the dye, on that I cannot address and you may well be correct.
DEF is DEF, RJC2...just water and ammonia (urea) mixed at the same exact ratio. GM trucks can run any brand they want without issue.
Yeah the dealership is lying to the guy saying you need gm def lol. I had def issues with my 2011 duramax, it had nothing to do with the brand of def it was just the crappy sensors on the system. Well known problem on the duramax.
Yeah the dealership is lying to the guy saying you need gm def lol. I had def issues with my 2011 duramax, it had nothing to do with the brand of def it was just the crappy sensors on the system. Well known problem on the duramax.
Thanks for your response on this. The same GM dealership is exclusively doing the work on both of the trucks that I've mentioned earlier in this thread. Both men are getting the same advice of using [only] General Motors brand DEF, and not burning farm fuel that has red dye in it.
Personally, I think they both need to find a new dealership for their service work. They are having ongoing issues with their trucks, some of which I haven't mentioned and have been extremely frustrating to deal with.
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