Quote:
Originally Posted by Jim Brierley
Stand in front of a mirror, seal your lips around the fitting on the gauge, blow hard while watching the needle in the mirror. You should be able to blow enough to make the needle move, that's all you really need to know.
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That is the way I do it.
Do not worry about the accuracy. Usually if these gages work at all, they are reasonable accurate. As previously stated, all they really tell you is if the oil pump is working or not.
Chris W.