Shelf life on open bottles of Royal Purple oil

[Alan Peters]

I have 2 half quarts of royal purple oil I found cleaning out the garage. Use to run this stuff until the cost jumped to almost $10 a quart. Anyways, if I decide to pick up 4 quarts can I still use these 2 half's? They are about 2 to 3 years old.



Big Al

 

[Todd Z]

I would say your fine..



Todd Z