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I have a 2014 Hyundai Elantra with a 2.0 liter MPI engine, 191,000 miles. I live in a tropical area where the temperature in the summer is 136.4 F and the winter is 5 F. I use Motul Eco-Lite 5w30 oil, but at 77 miles I feel a slight vibration and loud sounds from the engine, and when I slow down it disappears. When I changed the oil to a higher viscosity Motul X-cess 5w40, I tried a speed of 88 miles, and the engine was quiet, Is the vibration and loud sound due to the low viscosity of the oil or because high mileage ?
interval at 3K mile
I have a 2014 Hyundai Elantra with a 2.0 liter MPI engine, 191,000 miles. I live in a tropical area where the temperature in the summer is 136.4 F and the winter is 5 F. I use Motul Eco-Lite 5w30 oil, but at 77 miles I feel a slight vibration and loud sounds from the engine, and when I slow down it disappears. When I changed the oil to a higher viscosity Motul X-cess 5w40, I tried a speed of 88 miles, and the engine was quiet, Is the vibration and loud sound due to the low viscosity of the oil or because high mileage ?
interval at 3K mile