I get a little puff of blue sometimes when i start my car should i be concerned. I use only MB oil filter and full synthetic oil
Valve stem seals weak, may not have to do anything until it smokes all the time.
Just a little puff is nothing to be concerned about yet, but you should be saving for some engine repairs down the road, enginecreator is right about the valve seals as they are usually the first to go. Just make sure you keep tabs on the engine oil level, oil consumption will increase as the mileage climbs.
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