I could not find 5W 30 in autozone so I use 10W 30 mobile one fully synthetic oil, is this bad?

 

"so I use..."

Kinda late to ask, but no, it's not "bad". Personally, I would have stopped a couple other places to make sure I found 5w, rather than just settle for 10w, if that's any indication.

 

whew, thanks..I'm planning to change oil every 5K miles and I'm now on the 4K mark, when I check the oil it was on "LOW" I added about 1.5 Qts..I do drive it like I stole it sometimes though I dont know if this will cause this..1.5 qts on 4K miles is this normal?

 

On "low" you should add at most 1qt.

 

I'll have to check again, but I thought the owner's manual recommended oil changes every 3,750 miles using dino oil.

5k on synthetic should be fine though.

And yes, 1.5 quarts oil consumption in 4k miles is normal. I wouldn't consider it to be excessive oil consumption unless it uses a quart every 1,000 miles.

2003 G35C, 6MT, DG/G, Aero/Nav/Premium
2002 Corvette Z06, Electron Blue/Black

 

"whew, thanks..I'm planning to change oil every 5K miles and I'm now on the 4K mark, when I check the oil it was on "LOW" I added about 1.5 Qts."

I'm at 10,500 or so miles and I've not noticed any oil loss. Something doesn't sound right if you're adding 1.5 quarts of oil per 4K.

I use Mobil1 5w30 and change at 4K.