In Nova Scotia where it gets cold in winter most people use 5W30 in winter (to make morning starts easier) and 10W30 in summer,most threads I have read in past say most folks who got high miles in their Toyotas used any ordinary oil that meets ASE (I think) and I assume most or all do. Synthetic is only needed under extreme conditions.
About oil filters it's HIGHLY RECOMMENDED that most Toyota 4-Runner & pickup owners use an oil filter that has an anti-drain back valve so that during initial start ups oil pressure build up quickly to quickly apply pressure to the hydraulically operated timing chain tensioner to avoid the chain from rubing against the brown plastic/nylon driver's side timing chain guide (dampener) which when worn through will rub against the timing cover causing the water bypass passage to spill radiatior coolant into the oil and serious problems arise like destroying your engine begining with crank bearings.
I usually ignore storing in my computer which brands of other market oil filters have an anti-drain back valve and regret it now because as you know Toyota parts in Canada cost a fortune and every single dealership in Canada has the exact same price down to a penny. I recently purchased parts from this Rentom,Washngton,USA based Toyota dealership which has the best prices in USA and probably the whole world:
(For USA customers:10% shipping by Fed Ex or free shipping with $100 & over speak to Roger at 1-888-271-3948)
Roger in an awesome guy who took my order last week for spark plug wires,distributor cap and rotor.I should of purchased an air filter,fuel filter and some oil filters,if you speak to him tell him Sidney from Dartmouth sent you,you can look up pricing on their website.The other 2 dealerships below have almost as good prices too but I included them because most other USA based Toyota dealerships charge more.
(free shipping with $100 & up)
I know you have a 3 liter V6 Toyota engine but they use the same oil filter so choose an oil filter with an anti-drain back valve.
Repairs TV's,VCR's,home/car audio out of my apartment