CRF230L vs CRF250L mpg??

[Sub Zero]

Ok I have a cousin who is coming off a 1991 Ninja 250 and is in the market for a dual sport now. Most of his riding will be done in Miami FL. Theres a lot of stop and go traffic out that way and the thing he is concerned about most is getting a bike with good fuel economy. He has talked about getting a CRF230L preferably brand new from Honda because he is reading stuff online about how they get some 80mpg. I'm having trouble finding a credible website or post that gives the fuel economy for the 250L. I think that he would enjoy the 250L more. its cheaper from the dealer by about 500$ and he would enjoy that bike more, and its more offroad oriented as well. Those of you with 250Ls, what kinda mpg ratings do you get?? Whats your opinion on this? every way I look at it the 250L is a better bike / buy. but I'm having trouble convincing him. unless somebody also thinks I'm wrong. post up your thoughts!