96 civic hatch
my d16z6 has 160k now and it's starting to smoke more than when i previously got my car when it had around 137k. it smoked a little every once a while, but not like now. it makes lil puffs where ever i go. im thinking of switching the grade to a much thicker one. i have no power loss, which is great. it's just that it smokes a little more than usual and my oil consumption has been low a lil during long distance driving. i do regular maintenance work on time and have been using 5w30 winter and 10w30 summer. would 20w50 oil be much better, smoke less, and burn less oil?