For the oil filter use what most have suggested, either a mobil 1, k&n, or napa gold as long as they are the longer version. For the air filter I buy the Mann from Napa it is the same exact air filter that Land Rover uses but without the Land Rover mark-up. Good choice with the Rotella 15w 40 it is a high detergent oil that will clean your engine internally and is good to use in old design engines.

 

Oil filter-NAPA Gold, WIX and Purolator, depends on who has them on sale.
Air filter-Purolator or WIX.