OTC's UltraTraceUV dye solution is the only smoke machine solution for EVAP smoke testing approved by GM, Ford and Chrysler. The smoke producing solution will not harm the activated charcoal canister, ORVR valve, purge valve, vent valve, catalytic converters, O2 sensors, seals, gaskets or any other EVAP system components. UltraTraceUV dye will not void factory warranty. Test for Evaporative leaks with confidence using OTC's Ultra UV Dye smoke solution trusted by major car manufacturers. Comes in 16 ounce bottle, see smoke machine's directions for filling instructions.
Image courtesy of ATC Automotive Technician Training Center.