They geared the formulation towards GDI and T-GDI motors a few years ago, already, ahead of everyone else, so fuel dilution was taken into account. I am not a fanboy of any brand, and I look at motor oil like it's a tool to keep my vehicles running. Oil formulations can't be changed overnight due to many factors. On GDI and T-GDI, Castrol seems to be ahead of the curve.will there be any real benefit to switching my CRV to the Castrol at its next change at 15k?
No, it's not. It's a high-flow filter that escapes a lot of dirt. Their air filters are even worse. BTW, you that saying: The best oil filter is a good air filter. Fram ULTRA (or TITANIUM), Royal Purple (oil filters, not the oil), Purolator BOSS (MANN HUMMEL) are all decent synthetic oil filters. If I missed any, feel free to correct me. If you like K&N oil filter you might as well use a Fram Orange can of death.I would imagine the K&N filters are decent.