tire pressure gauge maintenance
I have three good quality pressure gauges with the dual foot inlet end for checking dual wheel tires. The oldest one doesn't work at all - the air just blows out of the foot that isn't on the valve s...
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I also have a "truck" gauge that I bought in the early 60's. Over the years I have periodically put a couple drops of pneumatic oil in the end. I don't know if it helped but it still is accurate.
