Hi Scotty,

Thanks for all you are doing ..........Back to engine flushing will a 1 quartz of the flushing fluid affect my 200k mile toyota ....its a bit noisy...hope the flushing will clear the clogs or will it kill my motor.....

it's a toyota, flushing will not hurt it, but it might not do anything to the noise, when noisy, those engines generally are just internally worn. They do not have hydraulic lifters