you can flush your own coolant for under 20 bucks, the cost of a new gasket for the t stat and a gallon of straight coolant.

remove the t stat, then put the housing back on with out the thermostat installed. then take the hose off the upper rad. leaving it on the engine side,( the t stat housing) then push the upper hose down to the ground, open the rad cap, have a garden hose ready.


start the car, with the hose on and in the rad cap, idle the car till clear water comes out of the upper hose.

once you have clean clear water, turn the hose off run the car till water stops coming out the upper hose. then turn the car off.

now put the new gasket in, the t stat back in, the upper hose back on, and dump 1 gallon of straight coolant, not the 50/50 stuff. start the car, add water as needed, bleed the system . top off, done.