What will amaze you is how quietly the 3.0-liter Common rail Direct Injection (CDI) V6 engine operates and carries the 5,236 pound body of the GL 320 CDI. The turbocharged v-6 generates a respectable torque of 398 lb-ft at 1,600 rpm and yet delivers a combined fuel mileage of 24 mpg. There are no tell tale signs of sulphur exhaust from the diesel due in part to the oxidizing catalytic converter close to the engine as well as the particulate filter.
