2002 Tahoe 4×4. Small oil drip has turned into big mess over time. I always keep an eye on my oil level especially now that the drip has become excessive. Coolant light comes on sometimes and when I checked it it was pretty low. With all the oil I'm losing I thought it would be low two, but it's not. In fact it is over full. Could be from not checking it while parked on a level ground. My driveway is slanted a bit so I may have added to much thinking I was low. I'm not sure. I suspected a blown head gasket but I don't see any signs of coolant in the oil or oil in the coolant. I also don't see a coolant leak either. What sucks is there so much oil all over everything I can't tell where the oil is coming from. It seems to run ok except for a slite miss at idle. I don't smell coolant and it hasn't overheated yet. I'm also surprised I don't smell oil burning with the way it has covered the undercarriage. Nothing coming from tailpipe as far as I can tell. Where should I go from here?