Grey smoke

[Gibbop]

I've got a 05 st 150 that sometimes emits grey smoke out of the exhaust. Mainly under hard acceleration but not all the time.
Once at a constant speed no smoke at all . Any ideas????
Thank Paul

 

[TyphoonFiST]

I've got a 05 st 150 that sometimes emits grey smoke out of the exhaust. Mainly under hard acceleration but not all the time.
Once at a constant speed no smoke at all . Any ideas????
Thank Paul

If its Turboed....most likely Turbo oil seals. Especially if its higher mileage. If not Turboed it will be piston rings or valve guide seals or a combination. Justice Bros makes a engine oil cleaner that could help with the rings if they are gummed up. FYI.

Sent from my SM-N975U1 using Tapatalk