You are considering whether to buy a product. You look at the reviews. Would the following review decrease or increase the chances of you buying the product?
Review title: BMW Oil Change
Product review: I switched from various synthetic oils for my BMW. I change my oil at half the BMW recommended intervals (which are a joke). I've tried Amsoil, BMW oil, Mobil 1 etc and it seems to me that the engine runs much quieter with the 5w 40 Valvoline synpower. When I perform an oil change I notice that the Valvoline is very black. This is good because its doing its intended job. The 5W 40 is hard to find so I'm glad that Amazon is stocking it once again. If you cant find the Synpower 5w 40 I'd recommend Amsoil 5w 40 for European cars.
