[Dave Bell]

I never had any problem with vibration. Using the cheapest smallest gauge I could find, it read out fine with the engine running. They have glycerin filled guages that dampen vibrations but they were bulkier, heavier and more expensive.

Since the guage is in the engine compartment, you are only reading it with the car standing still... only vibrations are from the engine.

By the way... don't plumb one of these things into the passenger compartment... gasoline there would obviously be a safety risk.

- Dave