Smoke out of the passenger tail pipe - HELP!

[fwayne]

By now you've run it enough to check the spark plugs. Pul those on the smoking bank. If it's oil, those are going to show buildup. If its water, or ATF they will be very clean, if not too clean. Just google "how to read a spark plug color" and you'll find the age old images that tell the story.

Oil can come from leaking intake gaskets too.

One thing I had happen was brake fluid being sucked into the intake from the brake booster, and the booster was filled with fluid from the leaking master cylinder. It smoked a lot with very little observed fluid loss.

I've alway been told that if it smokes under acceleration, its rings, if it smokes most under decelleration (downshift with no throttle) its the valve guides.