17 JUN 2019 · Filtering the air that enters a vehicle is critical to the performance and comfort of the driver. But, it can be challenging to determine when an engine air filter or cabin air filter should be replaced. Andrew Markel talks about filters with Tom Walsh from MAHLE and how to inspect and judge a filter. This episode is sponsored by MAHLE.

2 JUN 2019 · Andrew Markel talks about oil filters with Tom Walsh from MAHLE. They discuss what a technician should look for when he or she pulls off an old oil filter, the truth about extended interval oil filters, the best place to get instructions for installing a filter, and more. This episode is sponsored by MAHLE.

18 MAR 2019 · In this episode we talk turbochargers and how they are changing maintenance, service and diagnostics. Andrew Markel, the director of content for Underwood Service, covers which vehicles have turbos, and what tools and training are required. Sponsored by MAHLE.

4 MAR 2019 · Gaskets are a part of almost every engine repair. Underhood Service’s Andrew Markel talks with MAHLE gasket expert Ron McCrum about new gasket technology and what technicians need to know when they are servicing head, intake manifold, and other engine gaskets. The hot topic of this podcast is multi-layer steel (MLS) head gaskets and how the different layers seal the engine block and head. Also, we look at new tools to prepare surfaces for gaskets. Sponsored by MAHLE.