I have that engine in a Camry now close to 100,000 miles. Amazing it will put out over 200 HP with no turbo, and gets fantastic mpg's. Mine still doesn't lose any appreciable volume of oil during on OCI, but, I haven't gone more than 7500 miles on an oil...until now. With HPL's 0w20, I'll leave it in the full 10,000 miles. Amazed also how clear the oil stays in this engine. Good job, Toyota! (the electric water pump worries me a bit, though!)