26th March 2007

Tire tread & wear: prepare your car for winter

I’m sure if you haven’t had it happen to you, you’ve seen it happen to someone else. It’s a cold winter morning and you go out and find that your car won’t start. You begin to realize that the reason your car isn’t starting is because you forgot an important part of car maintenance. That is preparing your car for the extreme temperatures of winter. When cold weather hits, most cars perform a bit more sluggish than usual. The oil takes longer to circulate, the engine takes longer to reach operating temperature, and your car battery may not have its full charge. Preparing your car for cold weather is easier than having to deal with the dilemma of trying to get a cold car started or even finding a tow truck. After a cold snap, tow trucks are hard to come by because of the volume of drivers whose cars are also stranded. There are a few important measures you can take well in advance to prevent this and other more serious effects of the cold weather to your car.

The first thing you always want done on your car before the weather gets cold is check your anti freeze level. Not just how much fluid is in the radiator, but the ratio of antifreeze/water content. They sell testers at most auto stores. It’s recommended picking one up or having a mechanic check it for you. Make sure there is enough antifreeze added to prevent your car from freezing. A frozen radiator can cause your car to over heat and it can also crack your radiator and or damage the water pump.

Have a tune up done. Have your sparkplugs cleaned and re-gapped or replaced. Check for arcing or worn plug wires. Replace them if needed. Also make sure your timing and other ignition settings are set to vehicle specifications. A full tune up will make your car easier to start and will also make it run smoother in colder temperatures.

An oil change to lighter oil will help protect your engine from excessive wear when starting a cold car. Heavier oil will take longer to circulate into the motor and in that short amount of time, parts can be left unprotected causing internal damage that may not show up right away, but will cost you money later on.

Winter wiper blades are a must for icy driving. They are designed to repel ice build up while driving. Without them you may find yourself having to clean your blades off. You will also want to purchase window washer fluid that has an antifreeze agent added. Putting antifreeze in your washers is a bad idea because antifreeze is oil based and will smear up your windows causing visibility to be lowered.

Keep gas line dryer handy in the event that your gasoline isn’t treated with an anti freezing agent. Using gas dryer reduces the water content in gasoline, which can prevent fuel line freeze up. A frozen gas line can cause your car to not run and will require the car being towed to a heated garage until it thaws. It’s easier and cheaper to buy the additives.

Check the air in your tires after driving for a while. Cold can make the tires seem like they are losing air until they heat up after driving. If you add air to cold tires, you may find that you have over inflated them after they warm up.

When starting your car, make sure that if you plan on warming your car up before driving that there is nothing obstructing the tailpipe. People have gotten carbon monoxide poisoning from warming up their car with the tail pipe blocked by ice or snow. Never warm up your car in a closed garage. If your car gets stuck somewhere out on the road and you need heat, never fall asleep with the car running, and always check to make sure nothing is blocking the tailpipe. Clear the area around it to prevent exhaust fumes from accumulating.

Always carry extra blankets, hats, gloves and a change of clothing in case you get stranded somewhere. Also keep a bag of play sand, or cat box filler along with a shovel in the trunk. The added weight in the back will help with traction on rear wheel drive cars, plus you can put the sand under the wheels to give you more traction if your car gets stuck. Canned foods and a can opener are good supplies to keep in your car if you are going on a longer drive, or if you travel through areas that are more remote. If you should get stuck, you won’t go hungry. Keep bottled water with you too.

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26th March 2007

How to change a car tire

The need to change a car tire can happen anywhere at anytime. With punctures and flats it usually happens at the most inopportune moment in the most inconvenient place, like a city traffic snarl - in pouring rain.

Initially you need three things. These are:

1. To be cool.

2. To have a properly inflated spare tire, a car jack, a wheel brace and something to get your wheel cover off, like a screwdriver.

3. To have wheel nuts that have not been over tightened.

In fact, it’s a good idea to try and loosen the wheel nuts first. If they really are too tight there is no point in continuing. This is becoming a regular problem nowadays and it’s a good idea to ask mechanics not to over tighten nuts and screws when you are having your car serviced. It’s technically wrong anyway to over tighten and it sure doesn’t help when you are miles from home and trying to change a tire.

If you are able to loosen the nuts then here is the drill:

1. Ideally the car should be parked on a hard, level surface, off the roadway. Don’t try jacking up your car on a slope. It won’t work. If on soft ground put a paver or block of wood under the jack but be careful and never go under the car.

2. Get everyone out of the car. Make sure the ignition is off. Put the handbrake on and put the car in gear.

3. Remove the wheel cover and loosen the wheel nuts.

4. Place the spare tire nearby and under the car. This will help prevent damage if the jack collapses.

5. Place your jack in position and jack up the car until it’s high enough to take the wheel off and to put one with an inflated tire on. Know your jack. There are various types and they are used in various ways. This is something you should know about in advance.

6. Take off the wheel nuts. A cross-armed wheel brace is best. Put the nuts in the wheel cover so you don’t lose them, especially if it’s dark.

7. Take off the wheel gently.

8. Put the spare tire on firmly in place and hand tighten the nuts back on.

9. Tighten the nuts a little with the wheel brace.

10. Lower the car, remove the jack and fully tighten the wheel nuts.

11. Snap the wheel cover back on and put the faulty tire, jack, brace and screwdriver back in the trunk.

When you drive away with that nice feeling of successful achievement and suddenly the steering starts to wobble, don’t worry. It’s probably because your spare tire has not been properly balanced. You can get it done when you get your puncture fixed.

Spare tires are usually neglected things. They sit forgotten in people’s trunks for ages. It’s only when there is an emergency that people remember them. In fact, whenever you are having a tire change and balance, it’s a good idea to include your spare tire in the treatment.

A couple more tire tips:

If you find a nail or something in your tire, don’t pull it out. This may quickly deflate your tire. The tire may run for ages with the nail in it but when you have time take it for a check-up.

If you have one of those teasingly slow punctures, you may not have to change the wheel. Try pumping some air into it and maybe it will get you home or to a service station.

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