Around the Wheel: Why the Fluid Choice in Differential Service Matters

Jan. 28, 2026

In this episode of Around the Wheel, Technical and Multimedia Content Director Erik Screeden breaks down why choosing the correct oil for differential service goes beyond just viscosity. Using the incorrect base oil, incorrect modifier, or modifier when none is required can quickly turn this routine service into a headache for everyone involved.

About the Author

Erik Screeden

Technical and Multimedia Content Director

Erik Screeden is the Technical and Multimedia Content Director for the Vehicle Service & Repair Group. Erik is an ASE Master Automobile Technician with L1, and L4 credentials, who has been in the industry for over 25 years in various capacities.  During that time, Screeden was a technician. He started out at a Ford dealership and continued to several independent repair facilities as well as spent time in the specialty aftermarket at a GM-specific performance shop. After his time as a technician came to an end, Screeden transitioned into a role providing scan diagnostic and J2534 tool support. He was then able to parlay his experience as a technician and a support specialist and use that in several technical sales roles.

 

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