So. '08 GXP. Bone Stock, Active DOD. 5w30 Mobil 1, Purolator PureOne Filter. 153k.

F'in thing eats maybe a qt of oil every 2k mi., so I check it on the regular. Last week, I pulled the stick while filling up the dollar tank at $hell, and... um it's dry? *wipes*, *shoves back in*, *still dry*.



Added a quart out of the 5qt oil change jug in the trunk. Back on the stick but still low. Added another quart. Center Hatch.
I thought Damn, I just checked that last week. ? Ate 2 quarts? It had been stable in level for a month. Maybe burned a 1/2 qt or something. Woops. ? I guess I'll see what happens...*drives home*

Checked it later that day....Center hatch. *Ok, no huge leak* which I knew because the bottom of the car is dry and dusty as usual.

Next day, check stick. Almost 2 quarts OVERFULL. It's to the Twist in the stick, as overfilled as off the bottom of the stick is under. About a full inch above the top of the Hatch-marks.. Oil is not dirty, or milked like it got filled with coolant or water.... ..and it still right there today, 6 days later.



I know a little bit, and I know that's odd. Never heard of it.

Anyone? Anything? I know These 5.3's have odd baffles in the pan but that's not gonna change the oil level sitting flat level...