No institution has been officially named to check the quality of its fuel, but only the services of the Department of Measurement Units, Standards and Services have been obtained.

Also, the quantities being sold by Lanka IOC are coming into question.

The CPC-sold fuel is randomly checked at their filling stations around three of four times a month by a special investigation unit, the regional managers, three officers appointed by the minister and the internal audit division upon receipt of complaints.

But, no such checks take place at Lanka IOC filling stations.

Therefore, consumer rights organizations allege this situation allows Lanka IOC to sell less fuel, but charge per litre.