Can I trust that little gauge?????
Our 07 Dodge - 5.9 Cummins - has a gauge like this on the air filter The owner's manual says to depend on this gauge to tell you when to change the filter. In fact, on page 391 it says never...
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You can't change a filter too often.
Keep this in mind: As long as there is no movement of the filter minder indicator you can assume that there is no, or little (insignificant) filter restriction. If you have any movement whatsoever, even if the indicator is still in the green, you have a restriction, and you are losing engine efficiency.
Keep this in mind: As long as there is no movement of the filter minder indicator you can assume that there is no, or little (insignificant) filter restriction. If you have any movement whatsoever, even if the indicator is still in the green, you have a restriction, and you are losing engine efficiency.
