First post, so please forgive me if this has been asked already.
I've got a bunch of older (ten years +/-) Mobil 1 5W-30 oil that's been sitting on a shelf in the garage.
We're getting ready to change the oil on my son's 1995 Cadillac DeVille. He's been using Mobil 1 for the past 100k miles and is very happy with it.
I noticed that the bottles, even though still sealed, have some staining on the upper half of the bottles.
We opened a few bottles and the oil is dark brown. Clean, but dark brown in color.
Is this still usable or is it now lawnmower oil? What caused the color change?
Thanks in advance.
I've got a bunch of older (ten years +/-) Mobil 1 5W-30 oil that's been sitting on a shelf in the garage.
We're getting ready to change the oil on my son's 1995 Cadillac DeVille. He's been using Mobil 1 for the past 100k miles and is very happy with it.
I noticed that the bottles, even though still sealed, have some staining on the upper half of the bottles.
We opened a few bottles and the oil is dark brown. Clean, but dark brown in color.
Is this still usable or is it now lawnmower oil? What caused the color change?
Thanks in advance.