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  #25  
Old 03-12-2014, 03:40 PM
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Re: Fueling the CRD

Re the tug that burned, this happens because the fuel is vaporized by the hot exhaust manifold and/or turbo. This happens on railroad locomotives sometimes when a high pressure injector line lets loose. Lots of fuel goes all over the place. With the big V engines they use, the exhaust manifold is on top of the engine in/above the valley of the V so invariably some fuel hits the hot manifold, vaporizes and ignites. Diesel fuel won't burn unless vaporized or atomized by heat or something like an injector. Drop a lit match into a puddle of diesel and there won't be enough heat to vaporize the fuel before the match is extinguished. Soak a rag in diesel, hold a match to it, and yes, it will eventually light and burn hot. Gasoline vaporizes by itself at room temperature, so a match dropped in gasoline will ignite the vapors evaporating off the fuel before it can get put out by the liquid.

I've witnessed the first step of this event; a train was going by and one of the locomotives was dumping fuel all over the place...it was spraying out from the engine hood doors and flowing off the walkway onto the ground. I called the RR emergency line and they got the unit shut down before a fire could start. If it was gasoline, the thing would have been toast by that point.
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  #26  
Old 03-12-2014, 09:07 PM
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Re: Fueling the CRD

Quote:
Originally Posted by ExcursionDiesel View Post
So to anyone who thinks they are going to accidentally light diesel, this is a great demonstration as to why, unless they atomize it onto a hot flame, it won't happen.
Ex -
I respectfully disagree.
Diesel fuel will ignite when not atomized. All it needs is oxygen and a ignition source. Make two identical piles of wet 2x4s. Pour diesel all over one pile but not the other. Hold a match on both piles. Tell us which pile catches fire. The difference between wood and a glass jar? The wood fibers and porosity of the wood introduce some oxygen into the mix.

The diesel in the glass jar does not ignite because there is not enough oxygen available below the liquid level in the jar, and there is essentially no vapor above the liquid in the jar. The gasoline itself doesn't ignite either, but the vapor above it does.

MBDiesel has it 100% correct in my opinion.
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  #27  
Old 03-12-2014, 10:41 PM
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Wiley,

I don't think we disagree. Diesel can be intentionally ignited. The original discussion was about accidental ignition from a pump spill during fill up. A puddle on pavement is tough to light. If spread thin on a porous material, its easier. Either way, it won't vaporize and explode like gas which is what some folks imagine will happen.

I use diesel as an accelerant all the time. It burns great but, just like you said, you have to hold a match or other flame source on it and be very deliberate.

So, I agree with you. Also, as mentioned in the tug example, our beloved CRDs can blow an injector line and catch fire the same way.
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  #28  
Old 03-13-2014, 10:00 AM
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Re: Fueling the CRD

I do not fill while idling for the same reason I do not go to drive throughs. I just do not like letting an engine idle as I think it is not so great for the engine and I guess I still have some of that environmental stuff in me from the 60's and 70's where I feel it is an unnecessary waste of resources. I am no tree hugger but guess I just do not feel right about letting my vehicle sit there with the engine running. I would not be to concerned about safety and as far as it being the law well let the person who has never broken a law cast the first stone. I do not buy that because the govt made this law it is a good one for our safety.

One other reason is that since I drive so much because of a 100 mile commute idling and city driving cut back the range on a tank a fuel enough so that I end up with one less days commute without having to fill up.

To each their own and it gets my granddaughter all fired up when we have to walk into a fast food place to order something. In NJ an attendant has to fill your vehicle and that bugs me when I am in that state as I like to do the fill up myself. Sometimes when it is really cold and windy I wonder why.
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  #29  
Old 03-13-2014, 10:37 AM
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The Diesel uses 0.3 gallons per hour at idle when at operating temperature. You would need to idle 7+ hours to lose 100 miles from your range!
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  #30  
Old 03-13-2014, 01:52 PM
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Re: Fueling the CRD

I've filled my up my various diesel vehicles while running and I don't have a single worry about it causing any trouble.

That said, I always shut it down at the station so that I don't have to listen to some random person lecture me on the dangers, on the environmental concerns (Seattle), or anything else.

I guess, in summary, I'll do just about anything to keep from talking to new people.
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  #31  
Old 03-14-2014, 04:40 PM
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Re: Fueling the CRD

At the end of the month, I'll be picking up my CRD GC in Houston (that is, if Detroit can find which snowbank my GC is buried in and get it on a train). I will then be driving from Houston to Dallas, to Salina, KS to Denver, then on to Casper, WY.

I've read enough about winter vs. summer blended diesel, that I'm wondering *when* the changeover occurs at various locations.

I figure Houston & Dallas should be on summer now, right? But what about OKC, Wichita, Salina, Denver?

Is there a table or map that show *when* each of these are planned to switch? Published anywhere? I know to only patronize obvious high volume dealers, but should I plan of topping off in Dallas, and ferrying fuel to Salina? And then what about Denver? Top off in Salina, then to Casper?

What are your thoughts about this planning?
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Old 03-14-2014, 07:34 PM
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Re: Fueling the CRD

Quote:
Originally Posted by GunnySpook View Post
At the end of the month, I'll be picking up my CRD GC in Houston (that is, if Detroit can find which snowbank my GC is buried in and get it on a train). I will then be driving from Houston to Dallas, to Salina, KS to Denver, then on to Casper, WY.

I've read enough about winter vs. summer blended diesel, that I'm wondering *when* the changeover occurs at various locations.

I figure Houston & Dallas should be on summer now, right? But what about OKC, Wichita, Salina, Denver?

Is there a table or map that show *when* each of these are planned to switch? Published anywhere? I know to only patronize obvious high volume dealers, but should I plan of topping off in Dallas, and ferrying fuel to Salina? And then what about Denver? Top off in Salina, then to Casper?

What are your thoughts about this planning?
In Minnesota, the changeover occurs in late September/early October, and changes back in April. This gives people plenty of time to run their tanks empty and refuel before it gets too cold in the fall, and allows plenty of time for the air temps to rise in the spring. The wait really sucks, but when you get it, it will be well worth the wait. Congrats again.
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  #33  
Old 03-14-2014, 08:17 PM
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Re: Fueling the CRD

Thanks, Shannon - the temp should be more moderate in OK and KS by then so I'm wondering if they will be pushing summer blend by then...

The real question: Do I fuel in Dallas, and run summer into Salina, or fuel in OKC/Wichita and run summer all the way to Denver?

Not a huge deal, but....
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Old 03-14-2014, 11:10 PM
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Re: Fueling the CRD

Just a thought: at some stations you can buy #2 year round. For example, this station was still selling #2 in January (albeit with a large warning about it not being winterized fuel) in addition to selling winterized "premium diesel".
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Old 03-15-2014, 10:26 AM
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Re: Fueling the CRD

Quote:
Originally Posted by GunnySpook View Post
Thanks, Shannon - the temp should be more moderate in OK and KS by then so I'm wondering if they will be pushing summer blend by then...

The real question: Do I fuel in Dallas, and run summer into Salina, or fuel in OKC/Wichita and run summer all the way to Denver?

Not a huge deal, but....
Since you won't be getting it till the end of March, I think the summer blend will not be an issue.
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  #36  
Old 03-15-2014, 10:27 AM
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Re: Fueling the CRD

Easy for you to say, Shannon!

We have rain/snow mix scheduled in our forecast this afternoon......
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