Here are 2025's most popular questions and answers from The Journal's Car Doctor column, from rotating tires to oil changes.

Abstract: This article proposes an individual module power control (IMPC) method for multiseparated winding (MSW)-solid-state transformer (SST) to realize multiport configuration in railway traction ...

Abstract: The co-phase power supply is a promising technology for the future traction power supply due to its power quality compensation and no need for the phase breaker. However, the embedding of ...

President Trump claimed there were “a lot of problems with Afghans,” without providing evidence, as his administration announced that it was implementing new immigration guidelines. By Shawn McCreesh ...