Can I Use 10W 40 Instead Of 5w30?
Can I Use 10W 40 Instead Of 5w30? Can I use 10W 40 instead of 5w30? Your vehicle does not use 5W-30 oil. The recommended oil viscosity for your vehicle, according to Kia documentation, is 10W-40. If you drive the vehicle in exceptionally cold weather, well below 32 degrees, you can use 5W-30 oil but