excellent write up!
I have a few questions :
1. My bolts for my thermostat seem corroded, shall I spray them with wd-40 before attempting to open them? What precaution can take not to break them?
2. If I dont want to drain the coolant, how much litres will leak when I remove the thermostat? Will cloth ot container be more suitable to catch it?
3. If I do go ahead and drain the coolant, will I need to drain the radiator with the blue screw from under the car and drain the coolant out the engine?
Thanks in advance.