11-12-2012, 12:58 PM
(11-12-2012, 10:28 AM)Ruan Wrote: They should run at 80*c all day long... If they're cooler than that then the thermostat is broken.... Often they'll take a while to warm up as you're using all the heat through the heater matrix, but once they are up to temperature, they'll sit at 80*c...
Don't assume in this weather that they'll get hot standing as they won't, that's the difference between a Diesel and a Petrol, a diesel idling produces very little heat... This is why they are so damned.efficient... HDis have a heater in the coolant system for this reason, when they're at low load when cold they often will take hours to heat up as the thermal efficiency is that great...
That's interesting you should say that Ruan, I noticed it yesterday night. Barely got over 70 after a 6 mile drive with the heaters on. As someone who has just replaced their heater matrix, I was surprised at how quickly there is heat coming out of the heaters though, even if it does slow down the engine's warming. After about two minutes the air is warm from the heaters. Also the warm air smell that the heater matrix makes is very nice
