R1200RT cam chain seems noisier after an oil change

[legarem]

Hello

 

I both this bike last fall. I've done my first oil change on my 1200RT 2012 yesterday. It has 103 000 kms. I used Mobil 1 15W50. Since I've done oil change, my motor 'seems' noisier at low RPM during acceleration and deceleration.. The sound remains me a little bit my R1150RT before cam chain tensioner upgrade. The previous owner did all his maintenance at the BMW dealer so I assume they used BMW oil. I always used Mobil 1 in all my engines without any problems. Any comments with this situation ? Thanks