| 摘要 |
An oil changing unit comprises a base having a disk configuration and forming a socket at a center thereof. The base further includes a manifold block thereunder and a first circular ridge formed on the base and surrounding said socket and a second circular ridge formed on a peripheral of the base. A first tube is securely assembled to the socket and having an orifice in a wall thereof. A first cylinder is attached to the first circular ridge and encloses the first tube therein. The first cylinder includes a first lid enveloped and secured onto the first tube and tightly sealing an upper end thereof such that the orifice of the first tube is located within the first cylinder. A second cylinder is attached to the second circular ridge and encloses the first tube therein and includes a second lid enveloped and secured onto the first tube and tightly sealing an upper end. Wherein fresh engine oil and recycled engine oil are directed into the first and second cylinders, respectively, such that the fresh engine oil can be heated by the recycled engine oil.
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