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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When you are making power, you pull a lot of air in. Probably why that D-Max of yours is so clean. BTW, did you hear that GM has come out with a new spray for your tail gate? Makes it easier to remove the bugs that run into you! :D
