Hi,

I want to flush the coolant and I can't find any valve or red valve behind the lower driver side grill.

All I can find is the Petcock Valve between the radiator & the reservoir.

Lower/Upper Radiator Hoses - The Audizine Classifieds

Is the Petcock Valve the only way to get rid of the coolant?

I did try to turn the valve, but it is really tight.
I am worry if i am doing wrong and break the valve.

Chris