I drive an 07 Camry Hybrid, and I've used both QSUD 5W-20 synthetic and Mobil 1 0W-20 Synthetic. I currently have QSUD in, but I had M1 just before. They both feel and sound the same. However, there was a 1/4 quart burn off with the Mobil 1 oil. Currently, I'm at 2k with the QSUD oil, and there...