A buddy of mine came by tonight with a brand spankin new 2003 Toyota Camry Solara V6 SLE. I told him these are likely excellent motors, but that there were some Toyota V6 engines with oil sludge problems. IS THIS ONE OF THEM? Besides religious oil changing and maybe auto-rx maintenance dosage, what keeps these engines clean? Can a goos syn keep it clean? If it is not one of the problem ones, I guess its a wasted post. Thanks.