I have a '93 Accord 10th Anniversary Ed. Automatic. I've owned the car
for about 6 months and I have a couple of different problems that I
hope someone can help with.

1) The engine has a rough idle when warm (500-750 rpms). When I shift
out of gear and into Neutral or Park it smooths out quite a bit, but
not completely. It also goes away when driving or pressing the
accelerator.


2) When I am cruising at a steady speed (say between 60-70 mph) on
level highway, I've noticed that the rpms will jump up about 500 rpms
for no reason. It feels like a minor gear shift, but with the level
terrain and the constant speed it shouldn't be shifting. It does this
"shift" continuoisly back and forth.
Side note: I'm getting about 23-25 mpg city/hwy combined. To me that
sounds low.


3) I've recently noticed the smell of burning oil when the car is
parked, but no signs of an oil leak. I had the valve cover and spark
plug gaskets replaced a few months ago, but this has only started with
in the past few weeks. Occasionally, there is a puff of white/blue
smoke that comes from the exhaust on start up.


If you have had similar problems or have suggestions to correct them
please let me know. Thnx.