Mr. Sled, I'm getting some pretty rich plug readings on my SRX and I'm confident my jetting is real close. I'm thinking my oil pump could be turned down a little bit, even though I can easily get 225 miles to a quart of oil. My powervalves also like to get rather dirty after 500 miles or so running Klotz oil. Is there a good chance too much oil consumption has something to do with this?