I do but i car pool so i will start it and let it run for about 2 minutes and then go. If its colder than about 15 i give it 5 minutes atleast usually. My free onstar is expired so i cant use the app on my phone anymore to start it. Today it was only 25 which isnt to cold at all, it just seems a ton more noticeable than last year when it was basically new. My 06 vortec max didnt make a peep, my moms 03 denali is quiet with alot of miles on it, old mans 00 has piston slap his 07 5.3 doesnt. We have gmt800/900s at work and they are all quiet except our 01 6.0. Just bugs me my 6.2 does i guess.