The Department of Energy’s fuel-efficiency tips might just save you quite a bit each month.

• Close your windows when you drive. An open window creates drag, which increases fuel consumption by as much as 20%.
• Multigrade oil reduces drag, so consider a switch.
• If you use a logbook to record your fuel purchases and kilometres travelled, you’ll be able to notice any discrepancies in vehicle performance. These could indicate mechanical malfunctions. Remember to service your car regularly.
• Radial-ply tyres offer less rolling resistance and longer life than cross-ply tyres, so make the change.
• Remember to pump up your tyres. Driving with under-inflated tyres increases consumption and reduces a tyre’s life, too.
• Avoid stop-start driving, accelerate slowly and don’t speed – the faster you drive, the more petrol you use.
• Car-pooling makes economic sense – if you haven’t joined a lift club yet, now might be a good time to join.