The motor oil used to lubricate your engine is becoming more sophisticated all of the time. In the 70s engine oil was of a single grade only and did not contain any additives to change the properties of the oil. This meant that motor oil had to be changed every six months when winter or summer came around. With the introduction of multigrade oil is this is no longer necessary. The additives in the oil change the viscosity so that it does not get as they came winter and does not become too thin in summer.
You might think that it goes without saying that running out of motor oil is one of the worst things that can happen to your engine. Unfortunately this is not known to everyone. I once had a friend (and I won’t mention their gender) whose knowledge of cars only extended to driving one. Sadly, for their pocket, they did not appreciate how important motor oil is and how quickly and engine can be ruined without sufficient lubrication. Needless to say this is a lesson they won’t forget.
Getting back to motor oil, even though changes are not required as frequently as they used to be they are still needed. When exactly will depend on the make and model of your car, typically it is between 3000 and 6000 miles. When it is time to change your motor oil make sure you choose a premium oil with the necessary mix of additives to protect your engine through all weathers. A single grade motor oil might offer you a cheap oil change but it will not protect you all year round. Your car’s instrument panel will always have an oil pressure warning light which comes on when the pressure gets too low. You may also have an electric oil pressure gauge if you have a high performance vehicle.