That's what I'm doing. It disproves the whole "k20c is more reliable". It isnt if you maintain it using 0-20 and 10k OCI. I went with Valvoline because of the high moly content. Shows good wear results. I'm using Hengst German filters on all my cars. They're fantastic products, good OEM+. As well as magnetic drain plug. And she'll 93 octane.