Rotary's Are Good And Now Scrolls Are Even More Good....Put Less Stress On Engine...!
The Piston Type's Are ROBUST But Requires Diesel Like Torque....Else You Will Feel Something Pulling You Back While You Accelerate
The DIESEL Engines Have Ample Of Low End Torque That's Why Your A/C System Performs Much Better On Diesel Than Petrol...But Newer Compressors Like Scroll Are Equally Good On Petrol Engines Now....!