Originally posted by Jlower
Having the engine converter to use CNG or Propane full time until empty then switching to diesel (normal). And having the option of also running diesel then being able to switch on the aspirated propane system, all pulling from the propane tank. (definantly not normal)
Jlower, are you talking about running your engine on pure propane, with no diesel at all? If so I have bad news for you. The heat of compression in a diesel engine doesn't get high enough to ignite a pure propane/air mixture -- it needs an external ignition source, such as the small amount of diesel injected at idle.