2016 Hyundai Elantra GT with 99,500 miles
drained Valvoline Full Synthetic High Mileage 0w-20 and found that it was just a bit too thin for my liking. Since I live in a hot, wet climate and it's summertime, I poured in Valvoline Restore and Protect 5w-30 with a Purolator One oil filter. Engine...