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"Propane conversions used to be big - especially fleet use like taxis and delivery"
If you've driven behind a propane powered taxi, then the propane's up front. Cars do get rear-ended. I haven't said that propane is safe. But it is safe enough for use in numreous vehicles, including those operating indoors.
In factories/warehouses, for example, it's the gasoline powered vehicles that are required to stay outdoors while the propane powered vehicles have free access to moving around skidded materials.
"I presume this is because any leak of the heavier-than-air Propane would accumulate in a low spot rather than dissipate, thus, big explosion hazard."
Couldn't the same can be said for gasoline?
Don't you find it strange/ironic that you are forced to use a refrigerant that contributes to global warming? The reason we have refrigerants is to help us deal with environmental temperatures we find high and uncomfortable. Wouldn't introducing a refrigerant that increases global warming result in higher temps causing us to demand even more refrigerant? Who's going to profit from that?
Anyhow, you first post indicates that you put great faith in the EPA. Are you sure they are answering to the needs of the environment and not that of the lobbyists in Washington?
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1980 245 Canadian B21A with SU carb and M46 trans
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