I shoulda known youall would want the whole story...

April, I bought this 300 SD. Has 300,000 plus. Runs very strong. THe guy I bought it from said it leaked about 1 qt every 500 miles. It had had a top end job a few years earlier. I took it for a pre purchase inspection at a reputable shop with a certified mercedes mech. They detailed some things that needed to be fixed, some possible places the oil leak was coming from, and basically told me this was a strong car, had no blowby, and I should get it. Got the engine cleaned because it was so covered, and then took it in for inspection. They did a valve job, checked for leaks, decided it was burning oil, not leaking that much. They suggested the turbo, or the rings (they checked the vaccuum, it's not that). I got pissed at them at this point, and went to someone else. My turbo blew on the road and I had it replaced, this did not solve the problem. THe new mech ( a good guy) told me I had tons of blowby and should just drive the car into the ground. WE replaced the valve stem guides also. I've been trying Auto RX in it, it's not really helping that much except with the small leak on the oil filler cap. I'm on my first cleanse after my first Auto RX treatment, for 2000 miles, then another Auto rx round. Maybe that the problem was caused by not using the right oil, but I only bought this car a few months ago, don't blame me. I'm bummed on this situation. There are some oil leaks that I probably should try to fix, but they seem small. I've placed a drip pan under the car and only get a few drips a day. So there's the deal. Real ideas will be accepted gratefully.



would it ever be worth it to replace the engine? or should I just get another benz (having a lot more knowledge this time around)?