Does oil "expire"?
#1
Does oil "expire"?
My dad got 12 quarts of Castrol GTX 10W30 for free from an auto shop that he was restoring. That was about 6+ years ago and we haven't touched the motor oil yet. I am wondering if the motor oil is still good for use. It is more than 6 years ago and who knows how long the oil sat for before we got them.
#3
Registered
There was a thread a while back where someone pulled out a factoid that oil should be used within two or three years. That means I really should use that bottle I threw in the trunk 3 years ago, and replace it with a fresh one. Maybe some time next year...
I always thought its shelf life was indefinite. But if it's over six years old, it might not be up to current API SL or SM specs. If so, use it in an older car.
Ken
I always thought its shelf life was indefinite. But if it's over six years old, it might not be up to current API SL or SM specs. If so, use it in an older car.
Ken
#5
The Michigan "WANKEL"
#7
RX-Heaven
iTrader: (6)
at any rate, i've seen oil change color when sitting. i had a botle of castrol gtx 20W50 on the shelf for a few years and when i finally saw it hiding in the back, i grabbed it and started pouring it into one of my RX-7's and noticed that it was more of a golden color and smelled different. i used it with no problems. i still have one bottle left that was next to it on the shelf. i can open it up and check it if need be.
#9
There was a thread a while back where someone pulled out a factoid that oil should be used within two or three years. That means I really should use that bottle I threw in the trunk 3 years ago, and replace it with a fresh one. Maybe some time next year...
I always thought its shelf life was indefinite. But if it's over six years old, it might not be up to current API SL or SM specs. If so, use it in an older car.
Ken
I always thought its shelf life was indefinite. But if it's over six years old, it might not be up to current API SL or SM specs. If so, use it in an older car.
Ken
#14
Registered
iTrader: (4)
There are parts of oil that can evaporate over time. However, this has been sitting sealed in a container. The evaporation would be minimal (even a plastic container breathes a little) over a 6 yr period.
I don't know if I would use it for a new oil change. But, it should be OK for use to top off when needed.
I don't know if I would use it for a new oil change. But, it should be OK for use to top off when needed.
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