Normal
KC,If your going to fill thru the cap you MUST do it one of two ways...If the engine is cold simply open the cap and fill it up.If the engine is warm or hot, (up tp temp), the engine MUST be running when you put in the fluid.Why,,,, If the engine is not running and it is up to temp you will be putting cold fluid into the radiator. Once you start the engine the cold fluid will suddenly reach the engine block and may crack a head or the block itself due to the extreme temp difference.There is nothing wrong with filling it when the engine is up to temp as long as the engine is running.
KC,
If your going to fill thru the cap you MUST do it one of two ways...
If the engine is cold simply open the cap and fill it up.
If the engine is warm or hot, (up tp temp), the engine MUST be running when you put in the fluid.
Why,,,, If the engine is not running and it is up to temp you will be putting cold fluid into the radiator. Once you start the engine the cold fluid will suddenly reach the engine block and may crack a head or the block itself due to the extreme temp difference.
There is nothing wrong with filling it when the engine is up to temp as long as the engine is running.
