In the latest Engine Teardown video, Director of Product Management & Technical Services, Tony Negri and Technical Coordinator, Teddy Lazarus take an in-depth look at the performance and protection of Guardol XT Full Synthetic 5W-40.

It was tested in a 2015 Ram 1500 EcoDiesel, which has run on Guardol XT 5W-40 for its entire service life. The vehicle has 270,000 miles and has primarily been operated in the hot, dry environment of Phoenix, Arizona.

Watch the video to see how Guardol provides outstanding wear protection, soot control, and bearing corrosion protection – even in extreme heat.