Heavy white smoke form tail pipe
 

Hello,

New to the forum, Neighbor has a 2006 pilot w/a 3.5 v6. Vehicle has been running ok for years. A few weeks back they came out and started it up and clouds of white smoke coming from the exhaust.
My question, can the 3.5 leak anti freeze into the cylinders thru the intake ? I don't think it's a head gasket because vehicle was running ok then all the sudden this.

TIA

BJW

If it's antifreeze it could be coming from either a head or the intake.