The mercury is at ambient temperature.
It's the red thing in thermometers. [wrong I'm sorry.] the red thread in a thermometer is coloured alcohol. If the thread is mercury, then it will be silver-coloured.
On a 2002 Mercury Cougar : No , the thread on cap on your engine coolant reservoir is the pressure cap / radiator cap
The thread on cap on your engine coolant reservoir is the pressure cap / radiator cap on a 1999 Mercury Mystique
1-1/2x16
On a 2003 Mercury Sable : The thread on cap on the engine coolant reservoir is the 16 PSI pressure cap / radiator cap
On a 2007 Mercury Milan : The thread on cap on the engine coolant reservoir is the pressure cap / radiator cap
On a 2002 Mercury Sable : The thread on cap on your engine coolant reservoir is the 16 PSI pressure cap / radiator cap
On a 1997 Mercury Grand Marquis : The thread on cap on the engine coolant reservoir is the 16 PSI pressure cap / radiator cap
8cm=30 degree Celsius 20cm=90 degree Celsius
No , the thread on cap on the engine coolant reservoir is the pressure cap / radiator cap
Remove belt If you are just changing the wheel--it is "left handed thread"