Monday, March 4, 2013

How to Save Fuel ?


Whether you drive a two-seat hybrid or a three-ton SUV, chances are you can squeeze a bit more distance out of each gallon of fuel. These ten fuel saving tips have served me well over the years, and they can help you improve your car's fuel economy and take some of the sting out of high fuel prices. Most of these tips will give you a very slight increase in miles per gallon (MPG) -- but use several together and the gas mileage improvements will really add up.

1. Check your air filter
A clean air filter is the key to good fuel economy. A dirty air filter restricts the flow of air into the engine, which harms performance and economy. Air filters are easy to check and change; remove the filter and hold it up to the sun. If you can't see light coming through it, you need a new one. Consider a K&N or similar "permanent" filter which is cleaned rather than changed; they are much less restrictive than throw-away paper filters, plus they're better for the environment.

2. Check your tire pressure
Next to the air fitler, under-inflated tires are one of the most commonly ignored causes of crummy MPG. Buy a reliable tire gauge, check your tires when they are cold (driving the car warms up the tires and the air inside them, increasing the pressure), and keep them properly inflated. Use the inflation pressures shown in the owner's manual or on the data plate in the driver's door jamb.

3. Slow down
As speed increases, fuel economy decreases exponentially. If you one of the "ten-over on the freeway" set, try driving the speed limit for a few days. You'll save a lot of fuel and your journey won't take much longer. Just be sure you keep to the right, so you won't impede the less-enlightened.

4. Hang with the trucks
Ever notice how, in bad traffic jams, cars seem to constantly speed up and slow down, while trucks tend to roll along at the same leisurely pace? A constant speed keeps shifting to a minimum -- important to those who have to wrangle with those ten-speed truck transmissions -- but it also aids economy, as it takes much more fuel to get a vehicle moving than it does to keep it moving. Rolling with the big rigs saves fuel (and aggravation).
5. Accelerate with care
Jack-rabbit starts are an obvious fuel-waster - but that doesn't mean you should crawl away from every light. If you drive an automatic, accelerate moderately so the transmission can shift up into the higher gears. Stick-shifters should shift early to keep the revs down, but don't lug the engine -- downshift if you need to accelerate. Keep an eye well down the road for potential slowdowns. If you accelerate to speed then have to brake right away, that's wasted fuel.

6. Get back to nature
Consider shutting off the air conditioner, opening the windows and enjoying the breeze. It may be a tad warmer, but at lower speeds you'll save fuel. That said, at higher speeds the A/C may be more efficient than the wind resistance from open windows and sunroof. If I'm going someplace where arriving sweaty and smelly could be a problem, I bring an extra shirt and leave early so I'll have time for a quick change.

7. Back off the bling
New wheels and tires may look cool, and they can certainly improve handling. But if they are wider than the stock tires, chances are they'll create more rolling resistance and decrease fuel economy. If you upgrade your wheels and tires, keep the old ones. I have fancy sport rims and aggressive tires on my own car, but I keep the stock wheels with a good narrower-tread performance tire in the garage. For long road trips, the stock wheels give a smoother ride and better economy.

8. Clean out your car
The more weight your car has to haul, the more gas it needs to do the work. If you're the type who takes a leisurely attitude towards car cleanliness -- and I definitely fall into that group -- periodically go through your car and see what can be tossed out or brought into the house. It doesn't take much to acquire an extra 40 or 50 lbs. of stuff.

9. Out with the new, in with the old
Many people keep their old cars around even after they buy a new one. A spare car, especially if it's an econobox, can be good insurance against temporary spikes in gas prices due to world events. The costs of keeping the car may or may not be less then the fuel saved, but it does allow for more predictability in your budget. My old beater doesn't look like much, but it goes 10 miles further on a gallon of gas than our regular car. For that, I can afford to look bad!

10. Don't drive
Not a popular thing to say on a car site, I know, but the fact is that if you can avoid driving, you'll save gas. Take the train, carpool, and consolidate your shopping trips. Walking or biking is good for your wallet and your health. And before you get in your car, always ask yourself: "Is this trip really necessary?"

Maintenance Tips


Aren't you maintaining your car well by adhering to service intervals, giving it regular washes and keeping it dust-free? There's quite a bit more you can do to keep your car as good as new. 
By taking care of any minor issues as soon as you can, you can avert serious problems that would lead to expensive repairs.

How to check the engine oil ?
Park your car on level ground and turn the ignition off. Wait a while so that the engine oil drains into the oil pan. Remove the engine oil dipstick. If you don't know where the dipstick is, go through your owner's manual - it will show you where to find it. The dipstick usually has a bright handle saying "engine oil". Wipe it with a clean rag or tissue. Then put it back all the way down into its place. Now, pull the dipstick again and check the oil level. It should be at the "FULL" mark. It isn't a big problem if it's a bit lower than the 'Full' mark, but top it up anyway. If the oil is black and opaque, it's definitely time to change it. If it's slightly brown, it'll do. If it's dark-brown, but still transparent, it's admissible but it will need to be changed soon; the sooner the better. If the oil is white (the colour of coffee with milk,) it means that the engine coolant is mixing with the engine oil. This indicates an internal engine problem, for example, a blown head gasket - have your car checked at authorized service center.

How to top up the engine oil ?
It is better to add the same type and brand of engine oil that is already being used. Add a little at a time, wait a while to let the oil drain and then check the oil level again with the dipstick. If it still isn't full, add some more - but don't go over the mark. Don't forget to put the dipstick back and close the oil filler cap when you are finished topping the oil up.

How to check automatic transmission fluid ?
Park your car on level ground and start the engine. Set transmission lever to the "P" (Park) position, and let the engine idle (on some cars this procedure may be different, please check the owners' manual for details). Pull the transmission dipstick. Check your owner's manual to find where transmission dipstick is placed in your car if you don't already know where it is. Wipe it with a lint-free clean rag or tissue. Then insert it back carefully all the way down into its place.
Pull again and check the fluid level. If the engine is cold, it should be above the "COLD" mark. If the engine is hot, the level should be at the upper end of the "HOT" mark. If it's just a little bit lower you don't need to worry. If you do, go ahead and top it up. Check the fluid condition also: if it's black and has a burnt smell, your transmission isn't going to last. Normally it should be clean and transparent, as in the image. New transmission fluid is red in colour. Over time it turns brownish. If it is brown, check your owner's manual, it may be time to change it. Some manufacturers require transmission fluid changed at 60,000km, others specify that you never have to change it - check your car's manual for information pertaining to your car.

How to top up the transmission fluid ?
It's very important to use only the transmission fluid specified in your owner's manual. For example, some Chrysler transmissions need a specific fluid and regular fluid like Dexron II may even destroy the transmission. Add a small amount of the fluid through the dipstick pipe and do not overfill it. Wait for a few minutes - let the fluid flow down. Start the engine. Check the level again.

Engine coolant
Low coolant level will cause the engine to overheat, which may cause serious damage to the engine.

How to check the engine coolant level ?
The coolant level should be between the "LOW" and "FULL" marks in the coolant overflow tank. If it is lower, top it up. If there is no coolant in overflow tank or you have to top it up quite often, have your car inspected, there is probably a coolant leak.

::::Caution::::
Never open the radiator or coolant overflow tank when the engine is hot! The fluid is under pressure when the engine is hot, and might spurt out and burn you. Turn off the engine, and when engine is cool enough (a few minutes after the engine has been turned off,) simply add a coolant into the overflow tank.

Tyres
Check tyre pressure at least once a month. If you don't have a tyre pressure gauge please invest in one, it is worth every penny. You can find the recommended tire pressures for your car in the owner's manual or on the tire pressure placard. Some cars have it on the inside of the doors as well. The maximum pressure listed on tires is NOT the ideal pressure! Refer to the owner's manual for the ideal pressures.
Rotate tyres at every other oil change - it will ensure that all tyres wear equally. If you feel vibrations at cruising speed, have your wheels balanced. There is a safe limit for tread wear. If the tire is worn below this limit it is a safety hazard. Refer to the result of mechanical inspection. Uneven tire wear indicates alignment problem or problems with your suspension.
Improper alignment causes increased tire and suspension component wear and poor handling. In worst case scenarios, improper alignment may throw your car into a skid, especially on a wet road. If a car pulls to one side, wanders or feels unstable on the road, have the alignment checked. Alignment that has been done properly will make your car's ride a lot more enjoyable.

CV joint boots
Most modern vehicles are Front Wheel Drive, and they all have CV joints (Constant Velocity joints) used to transfer the engine's torque to the front wheels. The CV joint is greased on the inside and sealed by a rubber boot that unfortunately, may break. If the CV joint boot breaks, the grease escapes, dirt and water enters and the whole axle unit may become inoperative in a short while. There is a CV joint located on the internal side of each of the front wheels. You can check CV joint boots visually by looking inside the front wheel arch from the front of the car with the wheel turned as far as it will go in that direction. The boot should be dry. If it is broken you will see grease all over the area. If the boot is broken, it needs to be replaced. If not replaced in time, the whole axle shaft will need to be replaced which will cost you more than replacing just the boot.