On Patrol:
In city 12-14Km/ltr without AC
On long 17.1+ Km/ltr without AC. Never tested again, I think it will give even better because I got it tuned on Patrol now, at that time it was not tuned so well.
On CNG:
Tested many times
In city 180+Km/refill of 940-960 rupees without AC. Last refill gave me 172 Km while I had to go to Chah-e-Sultan, Murree Road & then ahaata mithu Khan Sadar rwp on Saturday. I had to drive on 1st & 2nd gear throughout on Murree road due to heavy construction going on.
On long 200-220 Km/refill without AC
In general it gives me 5.3 rs/km in city without AC.