ok ive replaced the thermo and after 30 miles frwy driveing i over heat cap maintins pressuer well and only need add about 1/2 to 1 gallon of water
in the city it runs fine got good flow around the system its clean as a whistle no leaking anywhere
have only 240k miles on this car

 

Hi Mike, welcome to the forum.

What kind of car do you have? Year? Motor?

 

oops yea year and make might helpa bit huh
97 850glt 5 cyl turbo wagon