Just bought '01 Chevy D-max and I love it! Everything is stock, air filter, exhaust and maybe chip/programmer are in the future. But for now I just want to service it and keep it in top notch shape. The truck has 130,000 miles and I would like to know the best oil to run in the D-max. Amsoil or Rotella? Syn or no synethic? I've always swore by Lucas products and would like to run that in the oil. Also I'd like to hear some feedback on air filters/intake systems, what does everyone prefer? Any info would be appreciated.