Originally Posted by jeepsrus
I would start with the basic stuff. Change your oil to Castrol GTX 10W-30. It is the best oil without going synthetic. It will clean the gunk out of your motor, which is probably the case. Then I would run Berryman gas treatment through the gas to get rid of any carbon built up on your lifters. If that does not cure your problem, you have more serious issues. Before we go into that, also make sure you have a new air filter. If your engine has a PCV valve, change that out. More than likely it is just a carbon build up issue. Douch your engine with clean, good, oil, and the Barryman gas treatment. Get rid of all the carbon build up. If after doing all this, and your engine still smokes, you have worse problems. Your piston rings are shot. That is the worse case scenario. Also put in new spark plugs.
The smoke happens after driving for a little while. It is greyish white in color, and i checked the oil to see if it looked like it was mixing with antifreeze, but didnt appear to be. I also checked the radiator for oil and didnt find any. Im not loosing any antifreeze either. I'm putting roughly 1,000 miles a month on it give or take 100 miles. I just performed a tune-up and the two spark plugs closest to the firewall had some oil deposit, the closest being the worst. It had been so long since the vehicles last tune up that i was suprissed any of them were still passing a spark. But in comparing it to the book, all just seemed to be old and worn.
Also, (not sure if this is related) when i changed the air filter there was a LARGE deposit of oil directly under the air intake to the valve. I couldnt tell if it was recent or the last owner just neglected maintainance. I removed the ccv tube to clean it, but it was so gunked up, i replaced it with a new one. After doing this i took it on a hour drive, and again the smoke came out around the 45 minute marker or so.
I also used a gas treatment recently, not sure if it was the berryman though
Im also starting to think it is happening after i sit idle for a while (stop and go traffic)