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Hydrogen is not pretty safe.
Hydrogen has a crazy wide explosive air fuel mix range, it usually just explodes throughout most of its entire combustible range and can be ignited by the tiniest of sparks.
LPG has a pretty narrow range of combustion, it's very difficult to get it to explode, the mixture and conditions have to be just about perfect for it to explode and it takes a lot more spark energy to ignite it.
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1984 chevy suburban, custom made 6.5L diesel turbocharged with a Garrett T76 and Holset HE351VE, 22:1 compression 13psi of intercooled boost.
1989 firebird mostly stock. Aside from the 6-speed manual trans, corvette gen 5 front brakes, 1LE drive shaft, 4th Gen disc brake fbody rear end.
2011 leaf SL, white, portable 240v CHAdeMO, trailer hitch, new batt as of 2014.
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