My 85 300d has 94k on it. I had slight fender bender in March that required replacing the oil pump, radiator, and cooling fan. All the belts were replaced too. Work was done at the local MBZ dealer body shop. The car runs better than before but it seems to burning a lot of oil. After the first fill up after getting the car back I had to add several quarts. The dealer said they filled it up during repairs. I then took it on road trip 16 hours round-trip and I only had to add 1/2 a quart. But seems now like every two tanks I have to add a 1/2 quart. Is that something to be concerned about. Pre-wreck I never had to add oil

Thanks!