Smoke is clear, not blue, not white. Thus, I'm pretty certain it's steam. Anyone know or notice why these cars spit out so much steam? Even when it's fully warmed up, I still noticed it's prevalent. This is in all 3 of my LS's. Is it just paranoia?

I feel a slight vibration in my 2013 with 38K miles, but i feel zero vibration on my 2011 with 91K miles when around 750RPM. I just dont understand why these symptoms vary per car with the same drivetrain....

 

You mean steam coming out of the exhaust tips when the engine is running?

 

From exhaust tips yes.

 

I think its likely because of your high humidity area, if all 3 of your LSs do it I wouldn't be worried.

 

If you have a vibration at idle there’s an issue