This 40-minute presentation will provide viewers with the details needed to safely service R-1234yf vehicles. Included are the events leading up to the choice of R-1234yf, the properties, service differences and tools needed for R-1234yf service and a glimpse at the future of automotive AC systems as we transition to Electric Vehicles.DO NOT REPURCHASE IF ALREADY PURCHASED JUST CLICK THE VIDEO ICON ON LEFT.