If you're on the budget and run standard boost - get decent 10W40 - for example original Toyota oil - pretty cheap one and apparently it's SHELL oil.
If you run extra boost -) then everyone recommend using FUCHS 5W40 - as this oil is desingned to withstand high temperatures and it does give awesome protection, however it's not cheap, but I'm using it personally and would highly recommend it to anyone, with this oil my MPG has improved, so it sort of pays for itself if you do some miles.
Always let the car idle for some time before you drive or drive it off boost till the engine is warm, always after heavy driving let the engine idle for a minute or 2, or drive off boost for 3-5 miles before you intend to stop - this will not only extend your engine life, but also you turbo charger life, as well as improve your MPG.
Use original Toyota Oil filter - those are the best you can get.