The wife and I just bought her a new camry 4 cylinder. I want to start off right with this car from the beginning. What do yall think about running 2 or 3 oz. of auto rx evry oci from the beginning. Assumming I did this, would there never be a need in doing a full autorx treatment? I have seen posts showing motors with many miles on them and the valvetrain looks almost new. Some running dino and some running synthetic. For warranty reasons I have to do oci at 5k and use 5W-20. Instead of arx, would it be cleaner or better to run a synthetic oil? Thanks in advance...