sooner02r1
New member
Hey guys, I have a 98 3.4l 4runner 4x4 and am about to change all the fluids, and install a tranny cooler so I'll flush it while I'm in there. my question is: the previous owner ran amsoil stuff in it that he says he runs for 25k miles, which scares the crap outta me. I'm planning on doing royal purple in the diffs/tranny/t-fer case and mobil 1 in the motor. do you forsee any issues with that change?? I ask because I switched oil brands in an older car once and it started using oil... what would the gurus recommend??