Re: Oil gauge problems
Oil starvation isn't always associated with an engine knock. I'd try running a GOOD known engine cleaner, such as Auto-RX or SeaFoam. Seafoam can be found at most auto parts stores and there are several different ways you can use it. It's good for cleaning out carbon deposits and sludge; freeing up oil passages.
Worst case is your main bearings are on their way out. Once oil pressure drops significantly (when the pump tests OK) then it's a sure sign that the main bearings are shot at that point.
'00 Durango R/T 360ci 290hp (modded); 138,500m
'06 Pontiac G6 GT 3.5L 220hp; 44,000m
'12 Chrysler 200 Limited 3.6L 283hp; 13,000m
'99 Taurus 3.0L 2V Vulcan 145hp; 154,300m - Traded
Amsoil in all vehicles!