KRONOS'S ROYAL PURPLE SUBARU OIL CHANGE PACKAGE

[4WDFrenzy]

Kronos, Is this HPS a new oil that's now GF-4+ rated? It was my understanding that RP wasn't GF-4 rated, and can void an engine warranty since that's the standard Subaru requires on any of their turbo cars.

To answer your question, RP is GF-5 Rated.

[4WDFrenzy]

This is plain Royal Purple SAE 10W30. I would venture to believe that the HPS formula won't deviate from that too much, if at all. Hope that helps.