Originally Posted by dvw
No way the factory gauge is linear. If you want a true reading connect a good gauge. Same with the temp and tach. I have a E body with the ralley cluster. The tach is of 5-10%. The temp and oil pressure always read on the 1st mark. I know the engine has over 50 psi.
Doug


Depends what you are talking about. If you look at the gauge itself, the spacing between divisions is not equal. The gauge scale linearizes the reading.

Challenger Oil Pressure Gauge.jpg
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