[Jonathan21]

Does anyone else have a problem with their Yukon throwing white blueish smoke when starting? Engine lite don’t come on dealer says they couldn’t find anything wrong with it, I’ve changed plugs but still does it and goes away after 5-10 seconds
Only thing I can think of is oil getting into cylinders

also have the problem of it saying I need a oil change or add oil before my mileage is up for a change