PURPOSE: An oil gauge for certifying engine oil is provided to certify oil amount easily without pulling out oil gauge. CONSTITUTION: In an oil gauge for certifying engine oil having a handle and a rod, a float(4) is installed at lower end of the rod, and floats the handle and the rod. A cap is connected in an inlet of an oil pan, and supports the handle and the rod. A pressure member is fixed by the cap on the rod. An indicating rod is installed in the handle and the cap, and indicates the oil amount by the floating of the handle and the rod.
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