Even on 12000 kms liquimoly person tells me that the oil is in good state and is serviceable
its a very very good oil with extraordinary mileage. Gives 10,000 easily! but I ususally take it to 12000 as once liquimoly technician recommneded me to drive 2000 kms more when I went there for oil change after 10,000 kms of drive.
Allah know the rest! 