Good Evening Ladies and Gentlemen...I have been noticing the engine in my 2014 CRV (191,000 miles) is making a chattering sound when pressing the accelerator at low speeds (under 40 mph). It does it really bad when cold, but is also noticible when at operating temperature. If you ever drop a stick shift, it's like when you upshifted too fast and lugged the engine...if I click off the overdrive and drop down to 3rd gear and wind the engine up to 2500+ rpms it goes away...she is also starting to consume oil...I have added 1 quart so far this period..any thoughts?? valve timing, timing belt? valve adjustments? ..