2022 BMW 5 Series Engine Oil
ElmaBrowning 
9 The factory was delivered in March 2022. The first guarantee was 9500 kilometers. A new valve cover has been used. The spark plugs of cylinders 1 and 2 are obviously oily, and the carbon deposits in the cylinders are serious. Before the first guarantee, a Chevron 470 was added to run at a high speed. The complaint has been made on the car quality website and called the 400 number. The 4S shop’s suggestion is to run for one to two thousand kilometers after the original medicinal liquid medicine is used to clean the carbon deposits to observe the situation, and post again if there is any progress in the future.
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