ok heres the deal. l just got my head gasket done, water pump, timing belt, and a new radiator. so l was trying to figure out how much coolant should l put in the coolant bottle ,, it doesnt have a line saying on the bottle. l dont wanna put too much , l heard it not good . theres a specific amount..
any help will be appriciated
thanks

if you had someone else fix the head gasket, they should have filled it for you

Typically all reserves should be filled 1/2 full of coolant. But check the level before filling any fluid. You can always get it checked free at any local auto parts store , like autozone or advance.

After filling the radiator at the radiator cap on the radiator, run the car for at least 15 minutes with the radiator cap removed. This will help get the air out of the system. While doing this have the heater set to the full heat position but leave the fan off. This will make sure that an air pocket does not get left in the heater core. After the air is purged we always over filled the reservoir & there is a max & min mark on the reservoir. If u can not see the marks just fill the tank to 2'' from the top. After sitting over night check the level again, no matter how well the system is purged of air it seems to always take more fluid from the reservoir. Set the coolant level to 3'' from the top of the reservoir to allow for expansion when the system is at operating temperature.