High-Mileage Engine Oil
Shop Schaeffer SynShield High Mileage full synthetic 5W-30 for compatible gasoline engines with 75,000 miles or more. Review specifications and package choices before ordering.
Help choosing a product · Shipping and bulk orders
Buying guide and frequently asked questions
How to choose
Mileage is one selection factor; viscosity and engine requirements still come first. High-mileage oil is intended for lubrication and deposit control, not to repair mechanical faults. Persistent leaks, warning lights or unusual oil consumption need diagnosis.
Should I use thicker oil just because my car has high mileage?
Follow the engine manufacturer’s guidance. Do not change viscosity solely because of mileage or to hide a mechanical problem.
Are prices per bottle or per case?
Prices apply to the selected package. A 12-quart case contains twelve 1-quart bottles; other packages are labeled separately. Review the package selector on the product page.
Eligible standard orders over $300 ship free to one address in the lower 48 states; orders of $300 or less have a $75 shipping charge. Freight exclusions apply. See our shipping page for pails, bulk packages and quote requirements.
