3rd Castrol Syntec 0w30 (fully synthetic, Euro Formula) oil change since I bought it last year. First one was when I got it home at 13K miles. Again at ~21K miles early this year. The oil was so clean after 7k miles that I decided I would go 10K on this one. I'm at 29,700 and the oil was nice and smooth on drain- though a bit darker than after only 7K miles.

Looks like 9-10K miles may be my lower limit. Doesn't burn a drop of oil and the chain just inside the oil filler is nice and clean- shiny even.

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