The source said the sale of contaminated gasolene by some industry players is big business, and the contaminants used are usually stolen or otherwise acquired cheaply.
He said that motorists in the parish needed "unambiguous guidance and a mechanism for compensation", after experiencing various car problems attributed to the bad gasolene.
Motorists who purchase unleaded gasolene, both 90 and 87, have been slapped with a $5.67 hike per litre, while persons purchasing automotive diesel will have to spend an additional $6.70 per litre.
He said the unknown contaminants can be substances such as acetone, kerosene and substandard gasolene, such as off-spec 90 octane gasolene being sold as 87 octane.