What are the disadvantages of synthetic oil?
Quite simply, the biggest disadvantage of synthetic oil is price. With a manufacturing process that is much more involved, synthetic motor oil costs nearly four times the price of petroleum-based motor oil. This means an oil change that would typically cost $20, could cost nearly $80. However, since synthetics are more durable, oil changes are not needed as often, and this fact partially negates the cost disadvantage of synthetics.
