[Stu]

Originally Posted by smokes

diesel always run cooler than petrol any hotter than 80 degrees will eventually cause the head to warp or lead to gasket failures. You could always put some cardboard in front of the radiuator like london taxi cab drivers do in the winter. not reccomended though. If you didn't have any anti freeze you would have siezed the water pump or cracked the block.

If the temperature is dropping it is probably cause there is snow between the bonnet and the windscreen. Which is where the air intake is for fresh air to the interior. but you should top up the coolant once a year as the gylcol(anti freeze) will evaporate off over time.

??????? - LOL.