if you own an old carb'ed car, the benefits are most excellent. propane has a higher octane rating (104), so that an old car that pings, won't after the conversion, all things being in good repair. less wear on the engine. cleaner oil that requires few oil changes. no emissions testing. tax credits. the car will be easier to start in cold or hot weather b/c the fuel is under pressure and vaporizes upon release.
i've never had a problem with an old caddy that i converted.
the license fee for a propane vehicle might be 2-3x higher than an equivalent car.
it isn't worth it to use it on a fuel injected version, as the computer does everything it can to optimze the combustion process.
it's very easy to convert a carb'ed car, using parts from propane powered vehicles (like forklifts) made by Impco.
All vehicle conversions must be certified according to Mobile Source Enforcement Memorandum 1A (Memo 1A), as well as the Addendum to Memo 1A, and the Revision to the Addendum to Memo 1A, which were issued by EPA.
[ March 07, 2005, 05:37 AM: Message edited by: seotaji ]