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#6 in Synthetic Motor Oil
Royal Purple HPS 5W-30
Royal Purple
$45.00 – $70.00
Royal Purple HPS is a high-zinc synthetic with the company's Synerlec additive for flat-tappet cams, older performance engines, and modified vehicles. The elevated ZDDP level protects metal-on-metal wear surfaces modern API SP oils leave lighter.
8.3
Good
Consensus
Don't buy this if…
- Don't run it in a late-model car under warranty - the non-API-licensed formula can complicate warranty claims.
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