Check your open oil bottles ...

[odie]

Discovered this when going through the oil stash . The inside of the bag was lined with oil and the bottles covered . Cleaned them off with glass cleaner . Can fit 2 open or unopened quart bottles in 1 gallon zip lock bag , sometimes 2 bags for 1 or 2 bottles . The MOBIL 1 Annual Protection has been opened around 3 years and would use for top off if needed . Never had a bottle do this before . Also keep all bottles of fluids ( brake , antifreeze , oil , etc. ) new and opened in plastic storage containers .

 

[PimTac]

I had a similar experience though my cap didn’t look like that. I also keep my partial quart in a zip lock bag and then in another bag with auto stuff. The ziplock was oily on the inside but the cap was on tight.

 

[tnt_motorsports]

Never seen that. Did you over tighten the cap? Most bottles have some style of a “gasket” in the cap. It looks to be there in the photo.

Just my $0.02

 

[odie]

Careful not to twist close too much . It's a 1st .

 

[Hermann]

Odie you don't know your own strength. Thinking it needed to burp.

 

[odie]

Odie you don't know your own strength. Thinking it needed to burp.

 

[wayne55]

I've had that happen several years back with a bottle of Mobil 2 cycle oil.