This is a different engine, but same fundamental principle, i.e. too little oil equals not enough lubrication of critical engine components, increasing friction, which increases heat and engine wear. However, by the same token, running your Compass, for example with the oil level up to full on the oil level indicator, particularly when breaking in a new engine, assists in helping seals to seat properly, but with too much oil, you run the risk of blowing seals. After all, it is a fluid under pressure, and if there is too much pressure, it will find a way out, either through a seal or, in some worst case scenarios, through the crankshaft. As with my '91 Cherokee, I have had many many oil problems, everything from the CCV to rear-main engine seal and valve cover gasket/rocker cover. So, in that one, as long as I am between full and add, I have found that that level works the best. Just keep it at full, and you should be fine; the dealership told me that was the best thing to do. No need to add oil everytime it dips slightly below the line, but any noticeable drops, or if it is more frequent than what could be considered normal, I would get it checked out. Just remember, how far and how long you drive, etc. plays a role.
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My 2007 Jeep Compass Sport, Bright Silver Metallic, 26E, CVT II, Driver Convenience Group, Sunroof, Trailer Tow Prep Group, 4x2
1991 XJ Cherokee Sport 4X4 4.0 H/O I6
2008 Dodge Ram 1500 ST, SWB Reg Cab, Bright Silver Metallic, Trailer Tow Package
JEEP - Just Enjoy Everything, Period.....