I participate in a Camry forum on yahoo, and someone had a question about Mobil 1 and Dino oils. I mentioned this site and the general consensus about the good dino's and about synthetics and the great info on this site. I was jumped on by one of the regular posters there calling this site a place for botique oil distributors to sell their wares. This clown claimed Toyota has oil blended to their specs and to use anything else is foolish. I wonder if anyone has done an oil analysis on Toyota oil and compared it with major brands, or can give me any info to counter his attack.