
I'M on a completely different tack this week. I have left the soggy tomatoes and wilting lettuce behind and have turned my attention to saving petrol.
There are several things motorists can do to cut fuel consumption, which not only saves money but helps save the environment too.
Here are the top tips. If you have any more, leave a comment and I’ll include them in my next blog.
Slow down: There’s no need to drive about as if you’re Lewis Hamilton on speed. That doesn’t mean you have to drive so slowly that elderly people on bicycles overtake you. If you cut your speed from a modest 70mph to 60 mph you will cut your petrol consumption by about 15 per cent. If you cut it from 70mph to 50mph, you will cut it by 38 per cent.
Drive smoothly: Accelerating and decelerating uses a lot of fuel. The smoother you drive, the less fuel you will use. Gently decelerate when approaching a junction, for example. Don’t pull away from traffic lights as if you’re life depended on you getting from 0 to 60 in five seconds. Don’t sit impatiently in a queue of traffic, revving the engine like some hormone-infused adoloscent who’s just passed his test. As well pumping carbon dioxide into the atmosphere, you are using up fuel. Drive more like your maiden aunt than your boy-racer brother.
Watch your rev counter: Engines run most economically at revs between 1,500 and 2,500 so try to keep between these two figures unless more power is required. To maintain low revs while driving you should change gear as soon as is practical. So no crunching through the gears from fourth to second without passing third, throwing up exhaust fumes like a smoke screen in a magic show. The only thing that will disappear is your petrol – and your money.
Get pumped up: Keeping your tyres inflated at the correct pressure is one way of instantly improving your fuel consumption. Under-inflated tyres increase resistance, causing cars to use more fuel. If your tyres are under inflated by 20% this will result in a 3% fuel consumption increase and reduce the tyre life by 30%. Bald tyres also harm fuel economy – not to mention being illegal and dangerous. Still, if you’re in a hospital bed you won’t be driving about.
Get warmed up: A cold engine uses twice as much fuel as a warm engine. A catalytic converter takes six miles to become effective. To save petrol, you have two choices, either drive ultra carefully for the first few miles or – if it’s just a short journey – walk.
Shut up and turn off: If you are driving fast, keep your windows shut. Windows open when driving over 50mph cause significant drag, which increases fuel consumption. If it’s too hot, turn the heating to its coldest setting and turn the fans on. Bear in mind that air-conditioning increases petrol consumption up to 10%. If you feel you must use it, then turn it on in short bursts.
Unload: Every 50kg extra weight in your car will increase petrol consumption by 2%. You can, if you like, use it as a good excuse not to take the in-laws out for the day. It may be more practical, and cause fewer arguments, to remove the roof rack when you’re not using it and to unload the boot of all those items you think you can’t live without, like golf clubs or every map of Britain you have ever owned.
Check your oil: Clean oil reduces the wear caused by friction of moving engine parts and so helps fuel consumption. On a petrol car you should change the oil once a year or every 7,500 miles. For a diesel engine it is recommended you change the oil every 6 months or 3,000 miles.
There are several things motorists can do to cut fuel consumption, which not only saves money but helps save the environment too.
Here are the top tips. If you have any more, leave a comment and I’ll include them in my next blog.
Slow down: There’s no need to drive about as if you’re Lewis Hamilton on speed. That doesn’t mean you have to drive so slowly that elderly people on bicycles overtake you. If you cut your speed from a modest 70mph to 60 mph you will cut your petrol consumption by about 15 per cent. If you cut it from 70mph to 50mph, you will cut it by 38 per cent.
Drive smoothly: Accelerating and decelerating uses a lot of fuel. The smoother you drive, the less fuel you will use. Gently decelerate when approaching a junction, for example. Don’t pull away from traffic lights as if you’re life depended on you getting from 0 to 60 in five seconds. Don’t sit impatiently in a queue of traffic, revving the engine like some hormone-infused adoloscent who’s just passed his test. As well pumping carbon dioxide into the atmosphere, you are using up fuel. Drive more like your maiden aunt than your boy-racer brother.
Watch your rev counter: Engines run most economically at revs between 1,500 and 2,500 so try to keep between these two figures unless more power is required. To maintain low revs while driving you should change gear as soon as is practical. So no crunching through the gears from fourth to second without passing third, throwing up exhaust fumes like a smoke screen in a magic show. The only thing that will disappear is your petrol – and your money.
Get pumped up: Keeping your tyres inflated at the correct pressure is one way of instantly improving your fuel consumption. Under-inflated tyres increase resistance, causing cars to use more fuel. If your tyres are under inflated by 20% this will result in a 3% fuel consumption increase and reduce the tyre life by 30%. Bald tyres also harm fuel economy – not to mention being illegal and dangerous. Still, if you’re in a hospital bed you won’t be driving about.
Get warmed up: A cold engine uses twice as much fuel as a warm engine. A catalytic converter takes six miles to become effective. To save petrol, you have two choices, either drive ultra carefully for the first few miles or – if it’s just a short journey – walk.
Shut up and turn off: If you are driving fast, keep your windows shut. Windows open when driving over 50mph cause significant drag, which increases fuel consumption. If it’s too hot, turn the heating to its coldest setting and turn the fans on. Bear in mind that air-conditioning increases petrol consumption up to 10%. If you feel you must use it, then turn it on in short bursts.
Unload: Every 50kg extra weight in your car will increase petrol consumption by 2%. You can, if you like, use it as a good excuse not to take the in-laws out for the day. It may be more practical, and cause fewer arguments, to remove the roof rack when you’re not using it and to unload the boot of all those items you think you can’t live without, like golf clubs or every map of Britain you have ever owned.
Check your oil: Clean oil reduces the wear caused by friction of moving engine parts and so helps fuel consumption. On a petrol car you should change the oil once a year or every 7,500 miles. For a diesel engine it is recommended you change the oil every 6 months or 3,000 miles.
Service with a smile: Regular servicing will also help to keep your car running as efficiently as possible and so save fuel.
Check your tyres: Make sure your wheels are correctly aligned. If your tyres are wearing unevenly, the alignment is almost certainly out. Improper alignment affects the handling of your car and increases fuel consumption.
Plan ahead: You can reduce car journeys if you are more organised. For example, do your shopping on the way to visit a friend rather than make two separate journeys. Try to get out of the habit of popping to the shops in the car when you need something. Surely you can do without that packet of chocolate digestives until it’s time for the weekly/monthly shop. Get a wartime mentality – “Is my journey really necessary?”
Do you have to drive there? You can walk short distances, or hop on a bus, or cadge a lift from a neighbour. You don’t have to get the car out for every single journey. You can park further away from work and walk. You can car-share. Here in Devon the county council organises a car share scheme. Click here for more details. I’m sure other counties do something similar.
Compare petrol prices: There is sometimes quite a bit of difference between petrol prices. Take a note as you drive around. It’s obviously madness driving five miles out of your way to get cheaper petrol but if it’s on, or just off, your regular route it can save you money. For example, if you can save say 2.3p a litre by visiting a petrol station two miles away, you can save 92p every time you fill up a 40 litre tank. If you fill up twice a month, this is equal to £1.84, or £22.08 a year. May not seem a lot, but it’s a few bottles of red wine if, like me, you tend to buy them from supermarkets.
Penny-pinching: I’m down to the penny-pinching now with a few tips to save you a groat or two. The best time to buy fuel is early morning or late evening when it is coolest. Petrol becomes denser in colder temperatures and as pumps measure the volume of fuel that you pump and not the actual density, you get more for your money. (Warning: this will work for the majority of garages but some may store petrol in a different way). Always give the nozzle a good shake and elevate the hose to squeeze out every last drop of petrol.
Down-size: Do you really need such a big gas-guzzler? Have you checked out the miles per gallon of similar cars? Do your homework and you can save money.
A final comment from the late, great Tommy Cooper: "You know, somebody actually complimented me on my driving today. They left a little note on the windscreen, it said 'Parking Fine'."