FarmVille Freak Eva16 and several others have reported receiving new fuel popups when fertilizing neighbors crops. When fertilizing farms, players receive free fuel, but not a popup to share with others, and the fuel is added to your overall amount. But now, when fertilizing a neighbor's farm, players can receive popups asking them to share free fuel directly with the neighbor whose farm they were fertilizing.
After clicking the share option, a post goes directly to the farmers Facebook profile wall- not homefeed. The neighbor will be able to redeem one large can of fuel from clicking on the post.
Note there are now 6 ways to get fuel: