Many drivers are unsure whether they should use synthetic oil in their new cars. Synthetic oil has a number of pluses over regular oil: it can maintain integrity in heat; lubricates better; has fairly good purity; and rarely ever becomes sludge, even after abuse. Most drivers will see the obvious benefits synthetic oil has to offer and decide to use it in their car. However, even with the synthetic oil's numerous benefits, the real difference is made in how you care for your car.

First of all, consider how regular you are with changing your oil. You car's oil needs to be replaced every 3 to 5K miles, before it breaks down and potentially damages your engine. Synthetic oil is a great option for drivers who tend to forget or delay oil changes, since it is breakdown resistant, even after extended use. Drivers who dutifully change their oil on schedule, however, will probably never get any benefits from synthetic oil's longer lifespan because it'll never be used long enough to make a difference.

Another benefit of synthetic is that it will last a long time without deteriorating. Let's say you drive 7k miles per year. At this rate, assuming a 5k mile oil change interval, you're only going to need an oil change every 9 months, based on mileage. Since regular oil starts to wear out after 6 months, you should either change your oil sooner than necessary or you should think about using synthetic. It may save you money to pay for one synthetic oil change a year instead of two regular oil changes, and it will definitely save you time.

Synthetic oil can withstand heat better than regular, which is one of the most common reasons people have for switching to synthetic. Regular oil starts to break down as the temperature increases, and continues to deteriorate as it gets hotter. If you regularly put your engine into situations where it will be in high heat, synthetic will help protect your engine against damage. Idling your engine for long periods of time and driving in high temperatures or altitudes will overheat your engine. Hot climates and thin mountain air won't cool your vehicle's engine very well, so people living in these climates should definitely consider synthetic oil. High performance vehicles will also benefit from synthetic oil.

There are lots of people who will recommend synthetic oil to you, even if you don't need it. For instance, synthetic is recommended for drivers who have to drive in stop-and-go traffic. However, almost everyone drives in this type of traffic at some time, and not everyone needs synthetic oil. It's really only necessary if you're stuck in stop-and-go for long periods of time, and on a regular basis. Synthetic might also be recommended to people who only drive on short trips, as a means for protecting the engine. But only driving for short trips will damage your engine regardless of what oil you choose, so the recommendation is redundant. Your engine is designed to perform for 20 minutes or more. There might be a slight benefit to running synthetic for short trips, but the difference is negligible.

If you've recognized yourself in one of the above situations and have decided to opt for synthetic oil, be careful when you go to make the purchase. You may be offered a synthetic "blend" instead of pure synthetic oil to save money. However, you probably won't know exactly what's in that blend. It could be equal amounts of synthetic and regular, or you might even be getting almost entirely regular oil with a splash of synthetic. If you're going to go synthetic, it's best to go all out and get the real thing, or not do it at all. Of course, if the blend is provided and produced by your vehicle's manufacturer, then it's probably safe to use - but that's the exception.

You might be wondering what your vehicle manufacturer recommends for your vehicle. Most manufacturers will say that "any oil that meets API standard specifications can be used in your vehicle." So normal is perfectly alright for most situations. Drivers will usually enjoy great performance from their new cars for a long time even without the extra benefit of synthetic oil, so long as they take proper care of their vehicles.