The direct-injection fuel system is one of several propane-powered technologies PERC is showcasing at this year’s ACT Expo.

That’s 14.7 ppm (parts per million ... systems found in cars and trucks are Multi-Port or Indirect Fuel Injection (MPI) and Direct Injection (DI). Many gear heads and automotive enthusiasts ...

With diesel engines, fuel is injected ... engines with direct injection). Diesel engine pumps can be damaged by sludge and other deposits, they can develop leaks and electrical parts can fail.