Press down/forward on the tops of the pedals, that's the brakes. Moving the pedals provides for some nose wheel steering (about 17 degrees worth) while the tiller does the rest.
Why would you want to, isn't that for diesel fuel? The additive I think you refer to is to keep diesel fuel from jelling in exteme cold, not for cleaning fuel systems.
I have to disagree on one point that another contributer made. The things they put in those fuel additives for cold winter starts, while they are predominantly for keeping diesel fuel from gelling they can also be helpful in gasoline engines as well. In a gasoline engine it helps to remove moisture that builds up during the winter months, and keeps your engine from having to try to use what is essentially watered down gasoline, from all the condensation in the tank. That being said, there should be no issues with adding it to a gasoline engine even though it says it is for diesel, but you will want to make sure to add it when you fill your tank up. This will help dilute it at the correct ratio, and if there was something in it that would hurt your gasoline engine, the effects will be that much more reduced.
Won't hurt, almost certainly won't help. Although the product is advertised for gasoline, diesel, and LPG engines it is really only useful for diesel engines, where the cold weather can turn diesel formulations that are not winterized to a gel that won't inject.
