Fuel prices are coming down, so should you go for petrol or diesel? If you want something else to chew over, how about asking yourself if that snack at the wheel could get you in trouble with the police?
From the most frugal fuel, to the safest engines, read on for this month's selection of motoring-related questions and answers.
Each week we answer a selection of readers' queries. To find out our advice on the latest questions and more, read on.