Hi All, i have as suggested looked back over numerous blogs about this subject including various links has been helpful but not entirely convinced. I have a 4.6 Range Rover 1996 with LPG conversion 128K miles. The car will run fine for 2 or 3 days then the temp guage goes up then drops back to normal one a while then returns steady, this can happen at speed on motorway and also in traffic. There is no emulsified water/oil present and no white smoke. sometimes the expansion tank is at normal level and other times it bubbles out the top when unscrewing the cap but never seems to lose coolant. It has had a new radiator, all new hoses fitted, i have contacted numerous 'speacilist' range rover garages and most seem to condemn the car without even lifting the bonnet, i have had everything from, cracked block, slipped liners, duff thermostat, duff viscous coupling, no thermostat, "you need a new engine mate £4-5K!!!" "they always go these 4.6 mate dont even need to look at engine". I am at a loss who to believe, anyone got any ideas, if the block is cracked then maybe then I can make a judgement and scrap seems a shame as it is in excellent condition autograpgh model special vehicle circa £72K new. Ahh the joys of RR ownership!!! many thanks Ken
