With so many engine oil options on the market, it can be hard to tell what your engine truly needs. This blog compares fully synthetic and semi-synthetic oils in detail, covering performance, protection, cost, and ideal usage. Learn how full synthetics offer maximum longevity and extreme temperature resistance—perfect for high-performance or turbo engines—while semi-synthetics strike a balance between protection and affordability for everyday driving. By the end, you’ll know which formula matches your lifestyle and your engine.