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How To Know When Your Engine Is Hot. » How GB 227 Works
Our temperature dipstick has a special heat spring silver soldered into the bottom end and is hooked to a grounding shaft that goes up out of the top of the tubing. A wire is run from the post on the tubing to the oil pressure warning light wire. When the oil heats up too hot, the spring rotates the grounding shaft until it reaches the calibrated temperature and touches the post that is connected to the stock oil pressure warning light in your dash. That's right, no new lights to hook up or wires to run up front.


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