http://www.weather.com/weather/hourbyhour/USWI0575?from=36hr_topnav_undeclared
1. Why is it so hard to start a car in the winter? http://auto.howstuffworks.com/question74.htm
The whole "starting your car in cold weather" thing can be a big problem for people who live up north, and especially for people who live in really cold places like Alaska. There are three reasons why cars are hard to start when it is cold.
Reason 1 - Gasoline, like any other liquid, evaporates less when it is cold. You have seen this -- if you pour water onto a hot sidewalk it will evaporate a lot faster than it will from a cooler place like a shady sidewalk. When it gets really cold, gasoline evaporates slowly so it is harder to burn it (the gasoline must be vaporized to burn). Sometimes you will see people spray ether into their engines in cold weather to help them start -- ether evaporates better than gasoline in cold weather.
Reason 2 - Oil gets a lot thicker in cold weather. You probably know that cold pancake syrup or honey from the refrigerator is a lot thicker than hot syrup or honey. Oil does the same thing. So when you try to start a cold engine, the engine has to push around the cold, gooey oil and that makes it harder for the engine to spin. In really cold places people must use synthetic motor oils because these oils stay liquid in cold temperatures.
Reason 3 - Batteries have problems in cold weather, too. A battery is a can full of chemicals that produce electrons (see How Batteries Work for more information). The chemical reactions inside of batteries take place more slowly when the battery is cold, so the battery produces fewer electrons. The starter motor therefore has less energy to work with when it tries to start the engine, and this causes the engine to crank slowly.
All three of these problems can make it impossible to start an engine in really cold weather. People either keep their cars in heated garages or use "block heaters" to get around these problems. A block heater is a little electric heater that you plug into the wall to keep the engine warm.
2.Synthetic engine oil http://en.wikipedia.org/wiki/Synthetic_oil
Advantages
The technical advantages of synthetic motor oils include:
Measurably better low and high temperature viscosity performance
Better chemical & shear stability
Decreased evaporative loss
Resistance to oxidation, thermal breakdown and oil sludge problems
Extended drain intervals with the environmental benefit of less wastes oil created.
synthetic oil is "worth considering for extreme driving conditions: high ambient temperatures and high engine load, or very cold temperatures"
most engine damage appears to be caused by cold starts
If you've been driving around with mineral oil in your engine for years, don't switch to synthetic oil without preparation. Synthetic oils have been known to dislodge the baked-on deposits from mineral oils and leave them floating around your engine - not good. I learned this lesson the hard way! It's wise to use a flushing oil first. http://www.carbibles.com/engineoil_bible.html
Fully Synthetic Fuel economy savings
0W-30Enhances engine performance and power
0W-40Ensures engine is protected from wear and deposit build-up
5W-40Ensures good cold starting and quick circulation in freezing temperatures
Gets to moving parts of the engine quickly
Semi-synthetic
5W-30Better protectionGood protection within the first 10 minutes after starting out
10W-40Roughly three times better at reducing engine wear
15W-40Increased oil change intervals - don't need to change it quite so often
Mineral
10W-40Basic protection for a variety of enginesOil
15W-40needs to be changed more often
3.Turn the key to 'start', but if it doesn't turn over in about five seconds, turn off and wait a few seconds.
4. Shift Neutral+press the oil pedal+start the car
5. Heet: Gas Line AntiFreeze And Water Remover
Heet aids in quick cold weather starts while preventing frozen fuel lines. Removes water and condensation from fuel system. Safe for fuel injected and carbureted engines with unleaded and leaded fuels. 12 fl. oz.
~$1.5/bottle in Walmart
6. Call AAA, they will help to start the car
No comments:
Post a Comment