I ran GC in my 2003.5 V-6 Camry (the first appearance of the VVT-i version in the Camry). I thought it seemed somewhat sluggish, either I got used to it, or it passed (it had been receiving M1 5w-30 before that). I ended up liking it very much, and it produced outstanding UOA results (posted here, long ago). I would not hesitate to try GC in a 1MZ V-6.