OK Guys I average 22/23. with my 3ltr. I've just got it back from profess LPG in Wales a 97 ltr tank, 3 new rear ignition coils,6 spark plugs,software for internet services,and rust protection waxoiling, free valve lube system,collection and delivery. This cost me £2,157.01. Without extras would have been 1,678.00. I'm now running solely on gas until empty and will let you know what mileage I get.Next project rear kitchen.All the best.Gordi.