Synthetic Blend: As the name recommends, this type is really a blend of conventional and also synthetic. It is made to provide the engine better security during larger loads and greater temperatures. It is regularly used in vehicles as well as SUV's. Although there is the artificial part, it does not set you back a lot more compared to premium old-fashioned types.
This type is much more expensive than traditional, and not all engines need it. Refer to your proprietor's overview, and if it does not recommend this kind, it may just be an extra expense that does not add that significantly worth to your engine.