Camaro ZL1 Differential Fluid Guide: MRC & Posi Service

650 lb-ft of torque through a limited-slip differential on launch puts enormous shear stress on gear oil. Track-used ZL1s that launch hard or run sticky tires wear diff fluid faster than the factory interval assumes.

Before a track day, check diff fluid level and condition alongside brake pad thickness and rotor runout. A ZL1 that launches hard and stops hard stresses both systems in the same session.

Learn more in our ZL1 brake fluid flush guide.