What is the difference between different types of engine oil?
The lower this number is, the less viscous your oil will be at low temperatures. For example, a 5W- motor oil will flow better at lower temperatures than a 15W- motor oil. The higher number, following the “w” refers to hot weather viscosity, or how fluid your oil is at hot temperatures.
What are the two different oil changes?
There are several different types of engine oil including conventional, synthetic blend, high-mileage, full synthetic, and European oils that can affect how often they need to be changed.
What is the best type of engine oil?
Our Top Picks for Motor Oil
- Best Oil for Most Cars: Mobil 1 Synthetic Motor Oil.
- Best Synthetic Oil on a Budget: AmazonBasics Full Synthetic Motor Oil.
- Best High-Mileage Oil: Valvoline High Mileage Max Life.
- Best Conventional Oil: Valvoline Daily Protection.
Is Thicker oil better for high mileage cars?
High-mileage motor oil doesn’t hurt and it could prevent leaks from starting. … Some mechanics recommend switching to a thicker (higher viscosity) oil — such as 10W-30 full synthetic oil instead of 5W-20 full synthetic — or using oil additives to stop leaks.
Can I mix synthetic and regular oil?
The simple answer: Yes. There is no danger mixing synthetic and conventional oil in your engine. However, conventional oil will detract from the superior performance of synthetic oil and reduce its benefits.
What does SAE 30 oil mean?
SAE 30 oil is a motor oil that has been given a viscosity rating of 30 by the Society of Automotive Engineers, according to AA1Car Automotive Diagnostic Help Center. Motor oils typically have ratings from 0 to 50.
Which engine oil is best for old car?
When you’re choosing the best oil for older cars or high mileage engines, there are several criteria you can look at.
- Pennzoil High Mileage Conventional Motor Oil. …
- Castrol GTX Part-Synthetic High Mileage. …
- Valvoline MaxLife High Mileage Synthetic Blend. …
- Mobil1 High Mileage Engine Oil. …
- Amsoil Premium Protection Motor Oil.
Can I use 10W 40 instead of 5w30?
Your vehicle does not use 5W-30 oil. The recommended oil viscosity for your vehicle, according to Kia documentation, is 10W-40. If you drive the vehicle in exceptionally cold weather, well below 32 degrees, you can use 5W-30 oil but even 10W-40 is still perfectly OK to use if outdoor temperatures are below freezing.