thanks for all the feedback i received here regarding the best oil filter and when to change it.
i'm going to be using Castrol Syntec 10W-30 oil with Purolator Premium Plus filters, at least for now. i'm going to see if i can purchase PureOne filters online since at a reasonable price since i can't get them locally.
even though i'm not hard on my vehicle (99 Camry, 2.2 4cyl) i'm going to change the oil every 5k miles, unless i use a PureOne filter in which case i will change it at 7.5k.
just changed my oil today.
one last Q:
any 2-stage air filter recommendations, and where can i get them online?
i've seen Amsoil, but it's around $30 without shipping. ouch.