I have a 1993 inline 6, with dual flowmaster exhaust, 30x9.5 bfg at, and the everything else is stock. i got the jeep about a month ago and started to see blue smoke coming from my tailpipes. I only notice it when i start it up. I have changed the oil/filter and it still has blue smoke coming from it. i did burn all of my oil really fast(about 5 qt in less than a month) so i did not know if its a ccv valve problem or its a head gasket or a piston ring problem. need some input to see if you may know what it is