The engine is working good. My father has a 750i -88 and I have compaired them and mine goes almost exactly the same as his, no difference. The engine runs very good. I dont know what can be wrong, it comes black maybe a little blue smoke too. That was when I had 5W-40 oil, full-synthetic, and then I changed oil to 10W-50 full-synthetic. Then it was not so much blue smoke, more black. I went out today and pushed kick-down in 60 km/h, then with 4000-5800 rpm is came some black smoke, I dont know if it was blue, maybe some parts of blue. If the engine takes oil, what is wrong with it? The "Kolbenringe", "dichtungen", or something else?
//Schnitzer
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