All oils changed regularly with synthetic mobil one from new.The truck is equipped with a few after market parts such as cepek wheels and tires, pro comp lift kit, stainless braided brake lines, custom dual exhaust, it is not loud it just looks a little better, fiberglass tounue cover.Stereo:Pioneer AVH-P2400BTKicker Door Tweeter Component System1500 Watt Audio Amp10 JL Stealth Box Sub Woofer4WDMileage: 130854Any other details and info at