I'm trying to quit smoking and she decided to start...
 

Hey all,

I told myself when I first joined this forum that I would try to limit my silly questions to a minimum, but here goes...

81 300SD, has been smoking a little since I got her a couple months ago, more than my roommates 91 350SDL, but after it was recommended by several people to put a bottle of "Redline" in the tank, tonight I noticed out on the highway that at a cruising speed (65 or so) I was smoking like I had romped on it to pass someone. A month ago or so a friend had been telling me to put a 1/2 qt of transmission fluid in the tank every 3-4 tanks so I finally did, and after I did, out on the road on about a 350 mile trip, she farted out a big cloud of black smoke and she had been running great. In fact, I got over 33 mpg on that trip. I am just wondering if I need to take her in to get checked out for the smoke or if it is just the Redline cleaning it out. Any experience or input would be great!

Thanks!

Hm...if you are getting a true 33mpg the only words of adivce I have for you are...

...drive on.