My usual around home mileage without a bike rack is consistently 34mpg during the summer,tankful after tankful. So you can see that when I saw 27mpg I was pretty surprised. I had someone following me all day who said they saw black smoke from time to time, probably when I downshifted.

This current 190d has 84,000 miles and a new head gasket. It purrs really. No oil consumption this year to date. No noticeable smoking or smells when starting. Timing chain showed zero stretch when I had the head off.

But there is something amiss in the EGR electricals, and kickdown switch isnt getting any power, so I know its not 100% happy. Hopefully this winter I can dig into it. Meanwhile, no bikes without a fuel surcharge...