Dec 1, 2015 update to the Austin Mini Cooper S project car

Changing the Break-In Oil

With a fresh engine, you want to run non-detergent—usually single weight—break-in oil. For our Mini Cooper S, we used a product specially designed by Millers Oils that is a 30-weight break-in, mineral-based oil.

After the first few hundred miles we changed to their specially formulated 20/50-weight Classic Mini oil.

This oil is supposed to be specially formulated for Minis, which are unique in that the engine and transaxle share the same oil source.

Learn more at the Millers Oils website.

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