Motor Oil

[capnj]

I always carry two 2gal. oil jugs for my pusher. Never had to open them in six years. Question is: Is there a life expectancy for unused motor oil ? Just curious.

[palehorse89]

I would say no, if sealed even better, just shake them up really good and use them in your next oil change and buy new for stock.........

[Ivylog]

I would not use so I’ll be bye to recycle them for you ... through my engine.

[Bigd9]

Diesel and gasoline engine oils undergo changes in design over time. Make sure the type designation of the oil is what your engine calls for. Shell has reformulated their oils recently as an example.

Other than that, I would use them.

[Roadfrog]

BITOG did a study on this a few years ago. They took a few quarts of unopened oil that were made in the 60's and did an in depth analysis of it. Turned out it was exactly as it was made nearly 50 years ago....all additives up to spec, viscosity unchanged etc.

As stated already, the key is to make sure that the API specs are up to your engine's requirements. I bet they are.

[capnj]

Ivylog LOL