There are many articles concerning old wives tales and conventional wisdom when it comes to car maintenance. One that you often see is that it is a myth to change your oil every 3,000 miles. Well even these new theories can be myths. Let's look at motor oil and how if relates to modern cars.
First, you do need to check your motor oil every 2 weeks or 2 tank fulls whichever comes first. Car manufactures consider 600 miles per quart of oil an acceptable usage, even though many cars go thousands of miles per quart. Since most cars contain about 4 quarts of oil, would you want to drive missing 25% of your oil?
Second, you should change your oil at least 2 times a year. With cars not requiring the same amount of maintenance as in years past, it is not unusual for cars to go years without major repairs. That does not mean that things don't go wrong and preventative maintenance is better than waiting for things to fail. Getting your car in in the early spring and late fall* for an oil change and general look over is a good habit to get into. For someone doing 20,000 miles per year, putting another oil change visit in the summer keeps you up to most auto manufacturer's schedule, although 4 times a year is not expensive and out of line with protecting your investment..
Third, consider using synthetic oil in your car, especially if you live in areas where it gets very cold in the winter. The synthetic oil will flow easier at low temperatures and put less strain on your starting system and may even extend the life of your battery. Now synthetic oil is only a few dollars more than conventional oil, but may shops try to charge an outrageous premium. If synthetic oil is more than $10 - $15 extra per oil change, consider going somewhere else.
Fourth, always change the filter with the oil change. Some people are particular about what oil filter goes on their engine, although today, virtually all oil filters do a great job. If you do insist on bringing your own filter (and in some cases oil) a shop may balk at first, but sit down and talk to them and they will usually work with you, albeit at about the same total cost to you as if they supplied the parts. Remember, you are not doing this to save money, but to be consistent on the parts used.
Fifth, keep a quart of oil around, but when faced with needing to add oil, it is more important to add the oil than to worry about the brand.
Sixth, oil that looks dirty is not necessarily bad, but oil that gets dirty right after a change is usually a sign that all the oil was not drained or the engine has a lot of dirt built up. Do an oil change earlier the next time, make sure it is done with a hot engine and they let it drain completely.
So do you have to change your oil every 3000 miles? The answer is mileage and time have to be considered. Of course you could do the change yourself and save some money - that will be for another day.
* For those fortunate to live where it is summer all year, twice a year is still a good target for your oil changes- you just have the luxury of scheduling the seasons!
Saturday, January 15, 2011
Sunday, January 09, 2011
What's your position?
Have you ever seen a person make a right turn from the left lane? How about someone trying to cut in to a line of cars while even with you? Both of these are cases of bad positioning. Now before we go any further, there are two ways to communicate with other drivers - signals (both hand and lights) and positioning. There are many instances where both are used together, but today we are just going to focus on positioning.
When you are trying to communicate with another driver about what you plan to do, the worst thing you can do is send conflicting signals. The driver who moves left before turning right is one of those. If a driver slows and moves slightly to the right in the lane, they give the impression that he or she is turning right. A driver who wants to merge into a line of cars does not barrel to the front, but picks a logical space in-between cars and signals their intentions. A person looking to parallel part, stops before the space with their blinkers on, waits until the car behind recognizes them and then pulls forward and backs into the space.
The one obvious use of positioning is when making a left turn under a traffic light. If space allows you pull forward and to the left, not entering the other lane but leaving room for cars going straight to move around you on the right. [note: in most states it is legal to pass on the right in this case, but because something is legal, it doesn't make it safe. The passing car should slowly move around the stopped car.] Just staying in line gives the wrong impression to cars behind and I have seen cases where a car illegally tries to pass, on the left, the car waiting to turn left!
In future posts I will talk about other cases where positioning is important to safe driving.
When you are trying to communicate with another driver about what you plan to do, the worst thing you can do is send conflicting signals. The driver who moves left before turning right is one of those. If a driver slows and moves slightly to the right in the lane, they give the impression that he or she is turning right. A driver who wants to merge into a line of cars does not barrel to the front, but picks a logical space in-between cars and signals their intentions. A person looking to parallel part, stops before the space with their blinkers on, waits until the car behind recognizes them and then pulls forward and backs into the space.
The one obvious use of positioning is when making a left turn under a traffic light. If space allows you pull forward and to the left, not entering the other lane but leaving room for cars going straight to move around you on the right. [note: in most states it is legal to pass on the right in this case, but because something is legal, it doesn't make it safe. The passing car should slowly move around the stopped car.] Just staying in line gives the wrong impression to cars behind and I have seen cases where a car illegally tries to pass, on the left, the car waiting to turn left!
In future posts I will talk about other cases where positioning is important to safe driving.
Monday, January 03, 2011
I can see clearly now
One of the things they check when you get your license is your eyesight. If eyesight is so important, then why do you handicap it by driving around with dirty windows? Especially at night, dirty windows can cut down you vision and make it difficult to drive.
In the winter you have the double whammy of dirt on the outside and film on the inside. The outside is obvious, some rain, snow, and mud (at least no bugs when it is cold), but the inside gets dirty too. When you run the defroster you blow moist air over the inside of the windows, and this attracts dirt. The film that accumulates cuts down on your vision and increases the amount of glare you have to deal with. At least on the outside you can run your wipers to try and clear the mess (You do have good windshield wiper blades and windshield wiper fluid?- Right?)
At least once a week, take some glass cleaner and a few paper towels and go over the inside of the windows. Don't forget to get all the rear view mirrors. You will be astonished at the amount of dirt that comes off and how well you can see again.
As to cleaning materials, the latest home window cleaners are not what they used to be. I prefer the special car window cleaners and the type that comes in a pressurized spray can seem to work the best, although you have to store them where it is warm. As far as what to use to wipe, paper towels seem to be the best, although if you hate to waste resources, then a good cloth towel, washed often will also do. One of the best materials to use is blank newspaper, especially the end rolls you can pick up at your local printing location.
For windows really coated with wax, a non-abrasive powder like Bon Ami on a wet towel digs through the grime and actually polishes the glass. Always be careful when using anything that might scratch or dull the windows.
ChrisZ
In the winter you have the double whammy of dirt on the outside and film on the inside. The outside is obvious, some rain, snow, and mud (at least no bugs when it is cold), but the inside gets dirty too. When you run the defroster you blow moist air over the inside of the windows, and this attracts dirt. The film that accumulates cuts down on your vision and increases the amount of glare you have to deal with. At least on the outside you can run your wipers to try and clear the mess (You do have good windshield wiper blades and windshield wiper fluid?- Right?)
At least once a week, take some glass cleaner and a few paper towels and go over the inside of the windows. Don't forget to get all the rear view mirrors. You will be astonished at the amount of dirt that comes off and how well you can see again.
As to cleaning materials, the latest home window cleaners are not what they used to be. I prefer the special car window cleaners and the type that comes in a pressurized spray can seem to work the best, although you have to store them where it is warm. As far as what to use to wipe, paper towels seem to be the best, although if you hate to waste resources, then a good cloth towel, washed often will also do. One of the best materials to use is blank newspaper, especially the end rolls you can pick up at your local printing location.
For windows really coated with wax, a non-abrasive powder like Bon Ami on a wet towel digs through the grime and actually polishes the glass. Always be careful when using anything that might scratch or dull the windows.
ChrisZ
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