Q:

What are some highly rated motor oils?

A:

Quick Answer

According to RankerReview.com, the three best-rated motor oil brands are Mobil 1, Royal Purple and Castrol. The Amsoil brand is ranked highly by CarsDirect alongside RankerRevie.com's top three. Mobil 1's 5W-30 and Extended Performance 5W-30 are made of full synthetic formula and are preferred for their thermal and oxidation stability.

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Full Answer

Royal Purple is said to reduce emissions and improve the condition of metal surfaces. Royal Purple motor oils such as 51530 API-Licensed SAE 5W-30 and 04154 API-Licensed SAE 15W-40 are used in high-performance cars. They provide enhanced protection for catalytic emission systems, and they have better compatibility with fuels that contain ethanol.

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