Keeping up with maintenance is a key to good performance/economy. Run a high quality synthetic motor oil that meets the viscocity recommendations for your operating climate temperatures as well as using full synthetics in your tranny/x-fer case/differential, keep your zerk fittings along the driveline lubricated with a good synthetic grease(Amsoil or Mobil1), make sure your spark plugs are new and properly gapped(maybe even properly rotated if you're picky), and keep your tires inflated to recommended spec or a possibly a few PSI higher than recommended if you only street-drive the truck(do a chalk test to find proper inflation for aftermarket tires). Also make sure your vehicle is alligned and wheels balanced so that it tracks straight and doesn't vibrate significantly at highway speeds, and make sure that none of your calipers are dragging. Make sure that your air filter is clean and your O2 sensors are working(If they weren't, you'd have a Check Engine light on), and if your truck is equipped with a PCV Valve, check or replace it every few years(I believe this is only applicable to the V6-equipped Tacos and California-spec 4-Cylinder Taco's made between the '95-'2004 timeframe... or something in that general range).jt0716 said:Sounds good. I appreciate your feedback! Could you reccomend any other small upgrades that would enhance performance?