hey everyone got this of another fellow ford forum! Ok , around the traps of the LPgas industry a few gas installers have been bitten on the a** from a simple LPgas conversion on the BF falcon new 6 speed automatic fitted cars with a very expensive repair bill approximately $10,000 worth of repairs Ford had three BF 6 speed automatic cars sent to them to figure out what happen to the cars after the LPgas systems have been fitted to them. After the gas systems were fitted to the vehicles the automatics failed. Ford actually removed the gas systems of the cars and restored the wiring looms back to original condition and till the automatics wouldn't work. The 6 speed automatics ECU's had fried , and guess where the ECU's are located , have been told there inside the automatic . Obviously Ford thought they had fixed the problem but again after changing the auto ECU unit the gearbox still didn't function again . Upon further investigation the GAS fitters changed the factory spark plugs to a colder heat range . The different spark plug resistance is what is causing all the problems and frying the auto ECU's. So guys if u plan to change the factory BF 6 speed automatic spark plugs on you next home DIY service be very careful that u fit the correct spark plugs otherwise u could be paying Ford a lot of money to fix your automatic not under warrantee but out of you own pocket. Been told the repair bill is some where around $10,000 . What a expensive service and tune that would cost someone , cause I could see this still happening to some poor sucker. cheers what use think????