I usually fill up 1/2 way because of the lighter load, more mpg.
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Saw things like this after the crash that made me start thinking, should I worry about my fuel tank?
Fuel Safe Racing Fuel Cells and Bladder Tanks
Fuel Safe Racing Fuel Cells and Bladder Tanks
After all, why should only racers get safer fuel cells?
That and hydrogen cars use fuel cells, too.
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But if it's really as 'rare' as mentioned for a car to blow up like that, then I'll simply stick to having a razor blade in my car to cut the seat belt and get out in time if my car should burn. (That and never buy a burning Telsa/Fiskar...)
I have seen burning cars - one on the side of the freeway, engulfed. Never knew they could get that hot! Two lanes away, passed by and could feel the searing heat through closed windows! =O All those movies with people running towards burning cars even closer....no way in real life! They'd all chicken and scorch before they even got close.
Way I drive, it's gonna be the idiots out there that'll kill me... >.< (eco in a subcompact...or survive in a Monster Truck....)