1. A whole tankful of gasolene dropped away because of the tiny leak.
2. A tankful of petrol wouldn't come amiss.
3. McVeighty gambled on going the complete four laps on one tankful of petrol, while Bell made one pit stop.
4. Turned out that some well-meaning wally had given it a tankful of unleaded two-star.
5. I don't mind buying an expensive car, but I do mind standing at a filling station watching the digital read-out adding noughts to my credit-card bill for a tankful of something I can't even see.
6. If your car runs out of petrol, you have used a tankful.