bsakal, I have the same year of Camry as your's, a 1996, with 150,000 miles on it. Which engine do you have, just curious? I've got the 5SFE 4-cylinder. I'm just about to complete the final rinse of Auto-RX on the car. It is noticeably better with much more power and smoothness! The previous owner of the car did abuse it and changed the oil probably with long intervals at Jiffy Lube, so the engine was pretty nasty underneath the valve cover. Auto-RX did seem to remove a lot of bad stuff, since my first rinse oil was BLACK! The engine is now much quicker and fuel economy is a little better, so I do recommend it for this car.
On a side note, I noticed it does not clean underneath the oil cap, like you mentioned. Mine has got a lot of stuff under there too, even after Auto-RX. My only guess is that the Auto-RX doesn’t reach that part, because the engine is mounted at an angle. Then again, you may have the V6. Another thing also, the guy who owned my car obviously wore the rear main seal out through his abuse, so it leaks there pretty badly there. It also leaked a little in the front main seal, which has for the most part disappeared with the treatment. Auto-RX has slowed the rear seal leaking some, but it has not stopped it. I’m hoping it’ll seal up over time, but most likely it is permanently damaged. Just remember to check your oil often during the treatment. I used Purolator Premium Plus filters and Exxon Superflo dino, but I’m sure any standard dino will work. Congratulations on your Camry. They are great cars!