Lights ZR1

I've seen videos of other ZR1s do this, is it normal? Admittedly the car hasn't been started in 2 weeks. And then you could see some small bits of smoke come out towards the end. It was about 50 degrees outside.

leadfart

Perfectly normal.

Lights ZR1

Thanks, I knew this was probably a stupid question but I wanted to be sure. I’m never behind the car when I cold start it. And especially since the smoke came out as the throttle blips and then again as it idled.

Too-Fast

I cannot really tell from your video, it looks like grey smoke which I would not be concerned about; especially at 50 degrees ambient temp, however, if the smoke has a blue tinge to it, that could signify bad valve guide seals. A short, puff of blue smoke, on initial start up, is classic valve guide seal leaking evidence.

Lights ZR1

It looked gray to me. The same color as the smoke you see just out the end of the tail pipes at the end.

Too-Fast

Then you should be fine, IMO.

grinder11

Don't worry about it. If its oil smoke, at least your guides are getting lube. Worst consequence would be eventually plugging cats/fouling O2 sensors. If either happens down the road (it'll be awhile), you'll have a definitive answer.

Landru

Puff was so slight actually had to view several times.
Since what I could see was a slight puff of gray betting it's merely condensation, especially in 50* temps.
As others stated IF it were blue it'd be a sign of oil burn, valve seals most likely culprit.

BTW tip next time returning from operation.
Spray inside tips w/ some EasyOff, let sit a few minutes & rinse w/ water.

Lights ZR1

Someone told me blue smoke would linger longer as well.