AS 4430.1-2003
Evaluation of devices, additives and processes which claim to improve vehicle performance - Engines designed for leaded petrol to operate on regular unleaded petrol
Specifies a test procedure and assessment criteria for evaluating claims that a device, additive or process can enable an engine system designed to operate on 97-98 RON leaded petrol to operate with comparable antiknock performance and/or durability to unleaded petrol (ULP) or premium unleaded petrol (PULP).