Engineers at Bosch are looking to increase car-engine efficiency by using a technology proven in fighter aircraft 70 years ago. In this episode of SAE Eye on Engineering, Senior Editor Lindsay Brooke looks at the return of water injection. SAE Eye on Engineering can be viewed at https://youtu.be/nXZ4V3-M8xI. It also airs in audio-only form Monday mornings on WJR 760 AM Detroit's Paul W. Smith Show. Access archived episodes of SAE Eye on Engineering at www.sae.org/magazines/podcasts.