If the manual calls for 5W20 then what reason do you have to change oil weights on a 2010 vehicle? I'm an engineer and it irks me that all these amateur mechanics think they know so much better than the manufacturer what to throw in the crankcase. If it doesn't burn or leak I suggest Mobil 1 5W20 but it's priced at a premium you may not be willing to pay. It got me the best highway mileage I ever got on my 1998 Acura 4 banger and the engine was quiet. It also made my rear main seal leak and burned fast, but those are my engine wear issues.