LPG does burn much hotter than petrol typically. To give you an idea the Kluger already runs at stoichiometric mixtures on petrol and this means the EGT (exhaust gas temperature) will be quite high (in the order of 900deg C) the only way LPG will run at this temperature is for it to be run chemically rich (more fuel over the ideal economical amount) and this is not the way to set it up as your km's you can get to a tank will be low. I would say given all of this that the likely hood of your 02 sensors being overheated are very real (as indicated by you going through 3 of them thus far!) and its a high probability in my experience of measuring the EGT of many vehicles and tuning them as well (although not tuning the Kluger) < but this can and will need to be addressed to stop the sensor failures. The scientific way would be to drill into the exhaust manifold near the sensor and put in a thermocouple and measure the gas temperature for both fuels, I think you will find that the LPG will be over 1000deg C and the petrol below 900deg C. Hi guys, just thought you'd like to know that our 07 KX-S will in the next week have the 2 of the air fuel sensors, 2 oxygen sensors and 2 catalytic converters replaced under warranty. The VSC light has come on for the second time in 12 months and Toyota couldn't work out why.NO LPG on my car.. Evidently they're willing to replace all those parts yet when questioned about the rubber oil supply hose everyone is talking about my dealer shrugged it off and said what do expect transmission cooling hoses are rubber and they don't get replaced.... What a bunch of ****ers!!!!!!
