I just rolled 250k miles on all original drivetrain on a 2002 Sierra 4x4 5.3l, runs great, reliable and consumes nearly zero oil.
I just changed the oil for the 10th time.......I will let that sink in for a moment.
Amsoil since day 1.
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2021 Supra SA 400
2018 Supra SA 400 (SOLD)
Michigan