[brucepick]

The CELs became more and more frequent, had to be cleared multiple times on ScanGauge on each 55 mile commute. Did some reading and was reminded that it had been about 50K miles since adjusting the valves.

So I did that. Some were way too tight, some way too loose. Better now but still a few CELs sometimes.

At same time, I did a double oil change - drain + fill, idle till fully warm, then drain and change filter and fill. So all the MMO is out of the system. And I did clean the plugs, using brake cleaner and a T-shirt rag.