TRUCK & OFF-HIGHWAY ENGINEERING TM Power diversity ICEs, batteries and fuel cells propel medium-duty rollouts Executive Viewpoints Dynamic cylinder deactivation for diesels Supplier Directory + Product Guide June 2020 offhighway.sae.orghttp://offhighway.sae.org/ https://www.sae.org/ https://www.sae.org/publications/magazines/truck-off-highway-engineering