Hello im new here.... I own a 2000 hyundai accent gl and it was probably sitting in my garage for about a year and a half and until today I decided to get it up and running, added new battery and also fueled it up.... The car started but when it did white smoke came out of the exhaust and also noticed that when I rev the engine a bit of smoke comes out sort of around the left side of the engine could it be that I have a blown head gasket??

 

White smoke is just steam. Blue smoke is oil, black smoke is fuel (too rich). I doubt it's a blown head gasket just from sitting.