Generally speaking, most newer vehicles require a synthetic or synthetic blend oil, while older vehicles may be able to get by with a conventional oil. The owner's manual for your car will specify the recommended oil type and viscosity.
Here are some general guidelines for choosing the right oil for your car:
* Viscosity: The viscosity of an oil is a measure of its thickness or flow resistance. The higher the viscosity, the thicker the oil. Oils are typically labeled with two numbers, such as 5W-30. The first number indicates the oil's viscosity at low temperatures (the "W" stands for "winter"), while the second number indicates the oil's viscosity at high temperatures.
* Climate: If you live in a cold climate, you will want to use an oil with a lower viscosity, such as 5W-30 or 0W-20. This will help your engine to start more easily in cold weather. If you live in a hot climate, you may be able to get by with a higher viscosity oil, such as 10W-40 or 15W-50.
* Driving habits: If you do a lot of city driving or towing, you will want to use an oil with a higher viscosity. This will help to protect your engine from wear and tear. If you mostly highway driving, you may be able to get by with a lower viscosity oil.
If you are not sure what grade of oil to use in your car, consult with your owner's manual or a qualified mechanic.
