Cooler Oil: Killing a Duramax Part 10
Uncover the truth about Duramax performance upgrades. This in-depth analysis compares stock vs. upgraded oil coolers and conventional vs. AMSOIL synthetic oil. We put these components to the test on the dyno, scrutinizing every detail with iDash data. See firsthand how these changes impact horsepower, RPM, and engine health. Discover if the hype around the 2020 oil cooler and synthetic oil is justified.