The turbo is the heart and soul of your diesel truck. Failure to properly care for your turbo can cause it to fail prematurely and can even lead to TOTAL ENGINE MELTDOWN. Diesel Turbo Lifesaver (DTLS) is the cure for problematic heat related turbocharger failures. DTLS automatically idles your engine and then shuts it off, all without needing the ignition key, thus saving the time and aggravation of waiting for the turbo to cool.