<VV> Alt Fuels (NO HYDROGEN), slight Corvair content....

[Jeff Wilson]

Okay all, just in time for Earth day! 
I know I've seen at least one photo (on Corsa's webpages perhaps?) of 
a late model Vair set up to run on 'natural gas' of some sort (this was done 
back in the 70's or 80's I think). 

Things I have sometimes wondered about but don't quite understand: 
what is the difference between CNG (compressed natural gas) and LPG 
(liquified petroleum gas) and 'Propane'? 

I'd assume that CNG requires heavy storage tanks, but I believe it HAS been 
tried as a motor fuel. Is LPG safe/ useful as fuel? I'm guessing that 'propane' 
is prohibitively expensive.... 

Any of you guys have knowledge/ experience in these types of things? 

CJ Wilson 
65 '500' series.