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2003 996 coupe oil change with 5W-30, problem?


Vehicle Information: Model: 996 ; Year: 2003; Body Type: Coupe; Total Mileage: 12700;

If use 5W-30 instead of 0W-40, will it hurt the engine? I know Porsche approved oil has no 30's. But that is the most popular one in the US market, you can get it anywhere. Since it is thicker, performance may be affected. But the main concern is the engine. Will it cause engine failure? Thanks in advance!!

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