Hi, I bought a bottle of EGR&cat clean to use in my wife's 2006 V6 Camry with suspected cat problems, possibly a mild blockage, I am going to add it to the fuel tank I am wondering how much fuel I should have in the tank when I add this to get the maximum benifit, Should I add to a full tank, half or quarter?
Thank you for your time.
Regards
Corey