I just bought a Magnum .52 four stroke, and I have to say as far as fuel goes it uses far less than any of my 2 strokes. I'm still breaking it in now, running it sloppy rich and it still will run 23 minutes on an 8oz tank. I'm thinking of switching to a 4 oz tank. I should get around 10 minutes of flying time easily with a 4oz tank.

The only negative thing I can see about the Four stroke is it seem to vibrate a lot more than a two stroke. Just make to check your screws for tightness often.

TiggerFlyer