A DIY install isn't illegal, but must meet the correct standard (which I think is known as COP11) and many insurers now want to see it on the UK LPG register, so it will need an inspection by an approved engineer.
Running on LPG is slightly less efficient than petrol, so the price is 40ish% less, but the MPG you'll get is 20ish% less. Still a saving but the payback will be longer.
LPG burns cleaner and deposits less crap in the oil, so you can service at slightly longer intervals.
I've been running an LPG van for 2 years now and thinks it great, but I would never pay to have it converted. Buying a car with it already on is the way to go.
Lpg Conversion
Started by
steviejam73
, Mar 28 2012 02:49 AM
16 replies to this topic
#17
ian2000t
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Posted 30 March 2012 - 12:44 PM
Looking into single point open loop systems, I think you could actually fit one yourself buying bits seperately for about £300 if you were clever about it.
MPG loss shouldn't really be 20% if the system is setup correctly and the engine is suitable for it. With MJ I would suggest increasing compression ratio (LPG is higher octane) which would restore a some power/MPG. Then you could have a second ignition map for petrol use that has retarded settings to stop pinking from higher compression.
MPG loss shouldn't really be 20% if the system is setup correctly and the engine is suitable for it. With MJ I would suggest increasing compression ratio (LPG is higher octane) which would restore a some power/MPG. Then you could have a second ignition map for petrol use that has retarded settings to stop pinking from higher compression.
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