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points by leonidasrup 1 day ago | 0 comments
There is a big difference between diesel powered engines and petrol powered engines. Diesel is much harder to ignite and this was for example big advantage for diesel powered tanks during World War II, in comparison to gasoline powered tanks.

"They introduced many innovations as they built their designs, including bell crank suspensions, as pioneers in amphibious tanks, and the use of diesel engines that were less likely to catch fire compared with gasoline tank engines that were being used at the time."

https://en.wikipedia.org/wiki/Tanks_in_World_War_II

The answer from an actual firefighter:

" Diesel has a much higher flashpoint. This means the speed of deflagration is much slower. It cannot convert the diesel to vapour as quickly so can't disperse the fuel as quick to spread the surface area.. "

" Leaking petrol is much more dangerous in an accident. It is far easier to ignite. If any leaking petrol contacts the exhaust or brake discs it could ignite causing rapid flame spread trapping people in the car. Diesel won't do this. "

https://www.quora.com/Is-it-possible-for-diesel-cars-to-expl...

[–] ggreer 1 day ago
It's true that diesel is harder to ignite than gasoline, but statistically they're not much safer than gasoline, and EVs have a lower fire risk than both. Last year, diesel vehicles accounted for 11% of vehicle miles traveled in the US and were responsible for around 12% of vehicle fire deaths. EVs were 3% of vehicle miles traveled and less than 1% of vehicle fire deaths.

Diesel vehicles usually have much larger fuel tanks than gasoline vehicles, so while the chances of a crash causing a diesel fire are lower, the consequences tend to be worse. If the stats are to be believed, the two factors balance each other out.

[–] leonidasrup 1 day ago
NFPA measures:

Mechanical failure or malfunction as a factor 30%

Electrical failure or malfunction as a factor 12%

Collision, knock down, run over or overturn 3%

Intentional cause 4%

https://thedailyautomotive.com/what-causes-car-fires/

Probably the biggest difference between EV cars and ICE cars can be summarized as:

"Electric cars have a lower incidence of fires compared to gasoline vehicles. However, it’s estimated that about one-third of fires in electric vehicles occur while the car is parked and unplugged."

https://thedailyautomotive.com/do-electric-cars-catch-fire/

Electric Car Fire Statistics: What the Data Actually Shows

"The most dangerous moment for an EV is not on the highway. It is in a body shop or a scrapyard."

https://thedailyautomotive.com/how-many-electric-car-fires-p...