Real World Fleet Test of a Prototypical California Phase 2 RFG

A test car program was run to determine if California Phase 2 Reformulated Gasoline (CaRFG) might cause performance and/or other fuel-related problems in vehicles currently on the road in California. In this test, the vast majority of vehicles experienced no performance problems with CaRFG. However, the older or high-mileage vehicles in this program, which were on CaRFG, had an increased rate of fuel system elastomer incidents (e.g., fuel leaks) over the vehicles that were operated on conventional fuel.