CowBoE

I'm trying to fix the power rear shade that only goes up partially, though it comes down fully. So far, I figured out how to remove the back seats completely. https://www.youtube.com/watch?v=21oOGYp9wjI Still trying to figure out how to disassemble the rest in order to get to the rear shade. I would greatly appreciated it if someone with a Service Manual for 2006 GS300 to share some instructions and pictures/diagrams on this.

I think it depends on where you live. Some auto parts store will not clear the code for you. You can get a cheap ODBII reader for $20 and you can check the code and erase them whenever you want. It'll come handy for many years.

2/3 of the time I use regular, but do periodically use premium. I also use Lucas fuel additive about once a quarter and do seafoam cleaning once a year. I have not notice any much power loss or engine knocking with regular.

After market catalytic converters are hit or miss as to how long they will last but OEM cat is so expensive. I don't have a specific aftermarket to recommend to you but check the reviews carefully and don't go for the cheapest one.