Thanks for the information RPM, I'll add it to my gas before I put it away next fall. I started the car today to try and see if I could figure out if it was lifter or injector noise and guess what. Noise is gone !!! Thank god, I really didn't want to take it in. I let it idle for a few minutes then took it for a quick spin still no noise when I pulled it back into the garage. I'll put some injector cleaner in it before I start driving it this spring.