My engine is smoking enough to seep through the hood when I stop at a stop light, and my temp gauge seems to work normally, the bottom of the temp gauge is a bit below the "C", and when the car is smoking it reads like it is when the car is fine. What could be causing this? Burning Oil? I'm stumped, and of course my stupid mechanic says "That's normal for old car!" Wish he could understand me when I say "I know, but I want you to FIX IT!" If any additional information is needed let me know, Thanks.