1. The oil level is too low, and the oil pump cannot suction oil normally; 2. Excessive viscosity of engine oil or thickening of engine oil due to high-temperature o
1. The piston ring has weak elasticity or is installed upside down; 2. Align or hug the piston rings; 3. Excessive clearance between piston and cylinder wall; The
The replaced engine oil has excellent cleanliness and dispersibility, cleaning the deposits (soot, carbon deposits, paint film) inside the engine and evenly dispersing