I recently purchased Blue Devil Head gasket fix.
The directions imply to pour the solution directly into your radiator and mix with antifreeze.
Now two questions:
1. Is it wise to have that stay in the radiator? or should i flush it and run the blue devil by itself.
2. If not, how do i drain a small amount of antifreeze to make room for Blue Devil. Without having to flush the whole system.
Thanks for your help. I have just purchased my 99 Tacoma and i have many questions for the wise men of Tacoma World