Oil fil cap o-ring losing coating? (oil change)

[obeykube]

Hello all,

Quick question to anyone with a CT4V blackwing, or maybe any car that has these blue o-rings around the oil reservoir fill cap, does yours look like mine? Seems the blue is some kind of coating on top of the O-ring material, and mine is coming off, and is actually leaving deposits of that coating around the reservoir internal diameter. Obviously cosmetically I don't care, but I am worried about this coating going into the oil reservoir...maybe I am being anal...

 

[Grainofsand]

Wtf

 

[obeykube]

Wtf

my coworker has a 2014 chevy tahoe with the same type of cap. His looks the same, so I guess I am a little less worried?

 

[Sully]

My cap looks the same.

 

[jbawden]

Mine is similar.

 

[SML604]

Hello all,

Quick question to anyone with a CT4V blackwing, or maybe any car that has these blue o-rings around the oil reservoir fill cap, does yours look like mine? Seems the blue is some kind of coating on top of the O-ring material, and mine is coming off, and is actually leaving deposits of that coating around the reservoir internal diameter. Obviously cosmetically I don't care, but I am worried about this coating going into the oil reservoir...maybe I am being anal...

View attachment 26536

Look at the dipstick too.... I noticed the seal on the stick was doing the same thing on the inside of the dipstick neck.

I'm watching it, but I've chalked it up to "GM"....

 

[obeykube]

Thanks for everyone's input