Completely depends on the car, the engine type and engine packaging...
Synthetic oils only provide benefit if you have a high revving tightly packed "hot" motor like ricer turbos...
Synthetics buy you protection against thermal breakdown. LS7? S/C Northstar Ya sure use a synthetic... V6 Minivan? waste of money.
Most domestic engines run just fine on old school Dino juice.
Or to look at it another way, how many oil related failures have you ever had/heard of? Most of the marketing is based on fear and confusion.
Synthetic oils only provide benefit if you have a high revving tightly packed "hot" motor like ricer turbos...
Synthetics buy you protection against thermal breakdown. LS7? S/C Northstar Ya sure use a synthetic... V6 Minivan? waste of money.
Most domestic engines run just fine on old school Dino juice.
Or to look at it another way, how many oil related failures have you ever had/heard of? Most of the marketing is based on fear and confusion.