To pick the best oil on your own, you need to always take a look at the car's engine manual for suggested oil as well as make. Aside from that, your car technician will additionally suggest you the best oil based upon the car as well as the conditions you drive in.
There are lots of brands on the market, however the oil ranking labelled on the container, like 5W30 tells you that this kind of oil can operate in both high and reduced temperature levels. The W tells you the winter rating as well as the second number informs you the summer score. Completely synthetic ones are indicated for winter months problems generally.