Tactrol is Petro-Canada

Petro-Canada

Petro-Canada was a crown corporation of Canada in the field of oil and natural gas. It was headquartered in the Petro-Canada Centre in Calgary, Alberta. In August, 2009, Petro-Canada merged with Suncor Energy, a deal in which Suncor investors received approximately 60 per cent ownership of the...

's trademarked name for an additive used in its petrol/gasoline.

Petro-Canada claims that Tactrol prevents the build-up of deposits in automobile engines. Tactrol is used in all Petro-Canada gasoline, but the SuperClean brand contains more Tactrol. Petro-Canada also sells Tactrol in bottles.

The formulation of Tactrol is proprietary to Petro-Canada. Petro-Canada describes Tactrol as acting "like a detergent

Detergent

A detergent is a surfactant or a mixture of surfactants with "cleaning properties in dilute solutions." In common usage, "detergent" refers to alkylbenzenesulfonates, a family of compounds that are similar to soap but are less affected by hard water...

", but there is little independent scientific verification of the efficacy and safety of this substance.