03-05-2016, 11:36 AM
I agree, but even so, I don't see why you'd purposefully run an engine at a higher temperature than it was ever designed to run at!?
My point was merely to show that an XUD9TE gauge displays the same old "red" section at 120*C or so, which if it manages to get there, the head gasket is history! Don't rely on the gauge meaning it's safe to do that.
PSA didn't just go "nahm8 gonna run this bitch at 82*c for teh lulz cuz we like cold engines and make it use more fuel"... If the outside temperature is less than 50*C or so, they're designed that they SHOULD be able to maintain their normal coolant temperature of around 83*C. I've monitored the engine temperature in the Volvo, still runs at 82-83*C... Almost all Diesels I'm aware of will run at 82-83*C, the gauge may not say so, but they should run in that region. I would also put money on an increase in coolant temperature gaining any improvements in economy.
Added to the fact even within the ECU, everything is aiming for between 80-85*C operating temperature, any increases past there and you're likely to find you're running into corrective action to *reduce* the temperature by the ECU.
Also, putting cardboard over your radiator is just an indication that your thermostat is shagged. Doing that should only have the net effect that you've reduced the radiator area and make no difference to operating temperature - that's why you have a thermostat!!! Go buy a genuine PSA one and it will run at the correct temperature.
My point was merely to show that an XUD9TE gauge displays the same old "red" section at 120*C or so, which if it manages to get there, the head gasket is history! Don't rely on the gauge meaning it's safe to do that.
PSA didn't just go "nahm8 gonna run this bitch at 82*c for teh lulz cuz we like cold engines and make it use more fuel"... If the outside temperature is less than 50*C or so, they're designed that they SHOULD be able to maintain their normal coolant temperature of around 83*C. I've monitored the engine temperature in the Volvo, still runs at 82-83*C... Almost all Diesels I'm aware of will run at 82-83*C, the gauge may not say so, but they should run in that region. I would also put money on an increase in coolant temperature gaining any improvements in economy.
Added to the fact even within the ECU, everything is aiming for between 80-85*C operating temperature, any increases past there and you're likely to find you're running into corrective action to *reduce* the temperature by the ECU.
Also, putting cardboard over your radiator is just an indication that your thermostat is shagged. Doing that should only have the net effect that you've reduced the radiator area and make no difference to operating temperature - that's why you have a thermostat!!! Go buy a genuine PSA one and it will run at the correct temperature.
