General > General Technical Chat
Massive EV cement truck fire: official 'explanation' versus the facts.
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JPortici:

--- Quote from: EPAIII on December 24, 2023, 02:05:08 pm ---If I was distorting facts, I apologize.

Have you ever seen diesel fuel burn? I have and those videos looked nothing like it. And a standard extinguisher should have had no problem putting it out. But, if it was reported as a pure diesel, then believe it if you will. I just don't know. And I really don't trust everything that is reported, just because it is reported.

--- End quote ---

When a diesel car catches fire it's usually because of a crack or another leak in the oil circuit. oil goes in the intake, the oil catches fire and the engine keeps revving higher and higher. oil is pushed by the pump that is driven by the timing belt... you can see how it is self sustaining and pretty quickly one of three things are going to happen:
one, you are extremely lucky and you cut the ignition, the air intake valve closes before it melts in position (but you have about five seconds to understand what's happening and counteract)
two, the engine revs so high that the whole thing seizes
three, burning oil comes out of the ignition, spills somewhere else and everything catches fire.

Bonus: The moment the interior catches fire, you have casted fireball.
G7PSK:
"When a diesel car catches fire it's usually because of a crack or another leak in the oil circuit. oil goes in the intake, the oil catches fire and the engine keeps revving higher and higher. oil is pushed by the pump that is driven by the timing belt... you can see how it is self sustaining and pretty quickly one of three things are going to happen:
one, you are extremely lucky and you cut the ignition, the air intake valve closes before it melts in position (but you have about five seconds to understand what's happening and counteract)
two, the engine revs so high that the whole thing seizes
three, burning oil comes out of the ignition, spills somewhere else and everything catches fire."

Reading the above tells me one thing and one thing only, someone does not understand how compression engine work and the sequence of events when one goes into runaway.
Monkeh:

--- Quote from: johansen on December 24, 2023, 07:29:39 am ---
--- Quote from: Monkeh on December 24, 2023, 05:52:28 am ---
--- Quote from: EPAIII on December 24, 2023, 05:24:24 am ---As for it being a diesel, I believe the powers-that-be are emphasizing that word instead of saying it was some kind of hybrid which did have a lithium based battery - a big one.

--- End quote ---

You can believe what you like, but the vehicle is known to have been a TDV6 model - NOT a hybrid.


--- Quote from: johansen on December 24, 2023, 05:40:19 am ---just looking at the list, there have been 31 fires in the last 12 months in the usa, and 30-34 casualties in the usa. that tells me that not all the fires are being reported.

--- End quote ---

I'm not sure how it tells you that, but okay.

So, where are the other 4600 fires? If they're 4% of vehicles they'd be 4% of fires if the rate was equal, and 4% of the average from your own data source is 4,694.8 fires.

--- End quote ---

There are about 300 deaths due to fires in the usa. (Like 5 year moving average )
10% of them are from teslas. As per last years data.

Which make up 4% of the cars on the road.

This 2.5:1 ratio fits with the insurance cost data you can also find.

Read more here
https://www.tesladeaths.com/resources

--- End quote ---

And in how many of those was the fire the cause or merely a factor in a high speed collision?

And I'll ask again: Where's the reporting of the other 4600+ fires which simply must be occuring?
CJay:

--- Quote from: EPAIII on December 24, 2023, 02:05:08 pm ---If I was distorting facts, I apologize.

Have you ever seen diesel fuel burn? I have and those videos looked nothing like it. And a standard extinguisher should have had no problem putting it out. But, if it was reported as a pure diesel, then believe it if you will. I just don't know. And I really don't trust everything that is reported, just because it is reported.

--- End quote ---

Yes, I have, I've had the misfortune to see plenty of vehicles on fire (all ICE) including a rather expensive Lamborghini which belnged to a soccer star.

I've seen more than a few diesels burn too, usually as a result of runaway and once they get going pretty much every fluid that can burn does, spilling burning engine oil, hydraulic fluid and diesel everywhere.
RJSV:
   I'm trying to see this in light of all the criticism.  That is, all the criticism of the reviewer / host of the video.  Sure his comments can be harsh....but he is talking about ARROGANCE, basically, and in light of some very real and dangerous differences, as that cement truck is basically conducting testing...testing better done in, um, err, PRIVATE! 
  Ok, it's irritating the way some of the video is delivered, but please don't think I care, or not, if the dude is ego driven.  His message really is the arrogance of that particular EV producer, and the 'Green / Woke' aspects put it over the top (arrogance-wise).
   Took me a minute to understand his points made regarding Transportation Safety and driver safety, and how absolutely critical such care and proper attitude.
   I'm seeing such reckless additude approach in other venues, these days.  That host, ego or not, points out some concepts, like having proper tests (in remote areas) as absolute necessary, and thats not happening that way, but on public roads.
   Sorry, but the video host (ie Auto Expert) is pointing out some serious-sss shhi.
I'd take (his) ego over the arrogance.
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