It's got 101 on it, mintish, prior owner put Royal Purple in all diffs, tranny, engine, 3.5 TT Eco, max tow 3.73's 4x4, auto 6 speed, Ford just did a tranny svc on it for the eletrical wires that go to the tranny/pan , curious if I should renew warranty ( all under hood, diffs, tranny, tcase, )...