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  1. Jeep Grand Cherokee Technical Forum
    Hi guys. Just bought an 08 3.0 CRD 4x2 for the wife. 42k miles. She loves it. Problem is that the low o/p light comes on above 70 mph (about 2500 rpm.) Slow a bit and it goes out. Chime sounds once, not continuously. Oil filter is clean (not making metal). Correct oil and correct filter...