New Petchburi Pete Posted July 20, 2008 Report Share Posted July 20, 2008 Not sure if this question belongs in this forum; but, I'm curious about the NGV conversions of engines built to run on petrol. Does running such an engine after conversion to Natural Gas cause any damage to the engine (cylinders, etc.) ?? Link to comment Share on other sites More sharing options...
Julian2 Posted July 20, 2008 Report Share Posted July 20, 2008 I had a couple of conversions done in Australia with out any problems. The only advice I got from the workshops was to run the vehicle on petrol for ten minutes every week. I can't remember why this was but it was something to do with avoiding engine damage. Link to comment Share on other sites More sharing options...
CTO Posted July 20, 2008 Report Share Posted July 20, 2008 I thought the car had to start on petrol as the engine was too low a tempature to burn the NGV? Could be wrong as I am always getting NGV and LNG mixed up. That all said - driving to remote Sakon Nakorn last week - petrol pumps with out Gasahol 95 a year back all had it AND LNG / NGV (Fark no idea which) Link to comment Share on other sites More sharing options...
Old Hippie Posted July 20, 2008 Report Share Posted July 20, 2008 AT work, we have vehicles which run entirely on CNG anr or Propane (is there really a difference?) And non use gasoline for starting. No ideas how they would work in extreme conditions, but I do know we had them when I worked in Denver, and I seem to recall reading the Denver public trans system is starting to use more CNG as well. http://en.wikipedia.org/wiki/Propane http://en.wikipedia.org/wiki/Compressed_natural_gas http://en.wikipedia.org/wiki/LNG Link to comment Share on other sites More sharing options...
Julian2 Posted July 21, 2008 Report Share Posted July 21, 2008 Right, my advice was for what's known as LPG or liquid petroleum gas in Australia. I'm really not sure about NVG. In Oz, virtually every taxi has been running on LPG since the 1980s. Link to comment Share on other sites More sharing options...
CTO Posted July 21, 2008 Report Share Posted July 21, 2008 Recently friends have been thinking about converting in Thailand but claimed in remote areas hard to find - last trip to Sakon Nakorn last week - stations that in the past didn't sell benzine where selling gas. Again - I get the two confustigated Link to comment Share on other sites More sharing options...
Mekong Posted July 21, 2008 Report Share Posted July 21, 2008 NGV (Natural Gas Vehicle) is also referred to as CNG (Compressed Natural Gas). Primary Component of Natural Gas is Methane CH4 the shortest and lightest Hydrocarbon Molecule. LPG (Liquified Petroleum Gas)is mainly Liquified Propane C3H8 plus Propylene and Butane. The advantage that NGV/CNG has is that it is LTA (Lighter than Air) whereas LNG is HTA (Heavier than Air) so in the event of a leak or tank rupture NGV/CNG disperses up into the atmosphere whereas LNG will tend to form low level gas pockets susecptical to explosion is their is an ignition source. Link to comment Share on other sites More sharing options...
CTO Posted July 21, 2008 Report Share Posted July 21, 2008 So most petrol stations are carrying which one? What's the one Taxi's use? Link to comment Share on other sites More sharing options...
Julian2 Posted July 21, 2008 Report Share Posted July 21, 2008 There appears to be only one place in Chiang Rai that sells LPG and if you didn't know it was there you would miss it. Link to comment Share on other sites More sharing options...
cavanami Posted July 22, 2008 Report Share Posted July 22, 2008 The fork lifts and airport vehicles have run for many years on "LPG" (or whatever, bottled gas) with no problems. The engine stays cleaner. In warehouses, where fork lifts are used, they have less air pollution with the bottled gas, especially being in the closed environment. have to wonder about all the gasoline ads that used to say that their gasoline used Xyz additives to improve gas mileage or whatever...all horse hockey? Link to comment Share on other sites More sharing options...
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