Semi-Synthetic Oil Change

Semi-Synthetic Motor Oil Overview

We often describe semi-synthetic motor oil as featuring the best qualities of conventional and full-synthetic oils. Also called synthetic blend, semi-synthetic motor oil has a mixed composition of conventional oil and synthetic base stock. This unique composition improves viscosity and thermal breakdown resistance beyond conventional while avoiding full-synthetic’s premium cost. Many Buick and GMC owners with higher-mile engines lubricated by conventional often switch to semi-synthetic for the improved viscosity and internal component protection, effectively extending engine and vehicle life. Semi-synthetic motor oil requires change services every 5,000 to 7,500 miles for the best results.

When do Drivers Switch to Semi-Synthetic Oil?

Although there is no universally accepted recommendation for when drivers should switch from conventional to semi-synthetic, the standard advice is 75,000 to 100,000 miles. Drivers wanting optimized lubrication, internal component protection, and engine life can switch before 75,000 miles if preferred. We welcome customers to contact our knowledgeable service advisors to discuss your vehicle, mileage, and switching to semi-synthetic oil.

GM-Certified Semi-Synthetic Oil Change Service

We provide GM-certified semi-synthetic oil change service with a quick turnaround. A factory-trained and certified technician drains the broken-down oil and removes the spent oil filter. We inspect the engine for oil leaks before installing the OEM oil filter and semi-synthetic motor oil to the precise capacity detailed in the owner’s manual.