I recently sold my 1998 Camry V6 XLE that used Mobil 1 since first oil change. I used 6-7 OCI and the engine was as good as new when I sold it. Never had to add oil between 6-7K OCI (dipstick never dropped below F that I could tell). No leaks anywhere.
Probably any full synthetic would go 6-7K OCI. Buying 5 quart jugs at Walmart makes the cost a lot more reasonable for several different brands (M1, PP, and even SuperTech). One nice thing about this engine is that it uses exactly 5 quarts for a change.
