Hot egts
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Logistics Pro
Joined: Nov 2001
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From: Georgia
Hot egts
I'm on the road towing 17k 5er. Egts seem unusually high for 65 mph cruising. 800 more or less on all sensors as reported by edge insight. Every thing else normal What think. Any body have similar experience. Now at 350 at idle
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From: Frederick, MD
I think it is fine.
The exhaust and its components retain the heat much better than the 6.4.
The result is passive regens as the norm when towing.
I think you are seeing that result in the form of higher overall EGT's.
The exhaust and its components retain the heat much better than the 6.4.
The result is passive regens as the norm when towing.
I think you are seeing that result in the form of higher overall EGT's.
Post Fiend
Joined: Jan 2009
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From: Greenwood, SC
Yeah, I agree, it's probably supposed to be that high for the passive dpf cleaning.
Do you have a value for dpf soot level? I've read lots of folks that say " dpf was at x% and dropped to x%".
I'd like to know if as we tow with these high temps we get that dpf super clean.
Also, when it does become super clean I wonder if your temps drop a little too.
Do you have a value for dpf soot level? I've read lots of folks that say " dpf was at x% and dropped to x%".
I'd like to know if as we tow with these high temps we get that dpf super clean.
Also, when it does become super clean I wonder if your temps drop a little too.
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Logistics Pro
Joined: Nov 2001
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From: Georgia
Yep, you guys are right on it. I usually tow at 60 MPH but today I was trying to make some time going down to Biloxi. Couldn't wait to give them some money. Any way I was on cruise at about 67 or 68 and that ran the EGTs up higher than I usually see. I wrote the post at a rest area and then thought about it a bit so I went back to 60 and the temps went right back to what I was used to. The other thing that happened was I gained about 1.7 MPG on the computer. A pretty significant increase. I also went Atlanta to Biloxi 350 miles with no regens. Anyway, thanks for the responses.
Post Fiend
Joined: Jan 2009
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From: Greenwood, SC
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That 1.7 mpg increase shows these trucks prefer 55-60. That is where I have always received the best MPG.
The problem is, I have a heavy foot so that is way too slow for me when the speed limit allows more. I don't tow a gigantic fiver though either!
The problem is, I have a heavy foot so that is way too slow for me when the speed limit allows more. I don't tow a gigantic fiver though either!
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Post Fiend
Joined: Jan 2009
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From: Greenwood, SC
I've settled on 72 as my cruise speed. I've given it a lot of thought too. For some reason, 72 allows me to stay relatively safe out there. It's a speed where I only have to pass the occasional car or semi, others that drive faster than that don't overcome me by such a large margin, and I rarely get stuck in a tiresome traffic rut where I get surrounded by people that don't maintain a consistent speed where we pass each other every mile or two.
It's a speed where everything just seems to work right. On the interstate anyway, I go speed limit everywhere else. A decent two lane highway I will cruise at 60.
It's a speed where everything just seems to work right. On the interstate anyway, I go speed limit everywhere else. A decent two lane highway I will cruise at 60.
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Yeah, I figure as much time as you spend on the road you have it down to a science on what is best for all aspects of a trip.
Sometimes the traffic flow on I-40 does not produce good MPG either when everyone is moving at 85!
Sometimes the traffic flow on I-40 does not produce good MPG either when everyone is moving at 85!
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