Most cars built before 1981 and many built before 1986 were designed to run on leaded petrol. Check with the manufacturer of your car to see if your car needs Valvemaster, or enter your details into our database and we'll let you know. The database recommendations do not apply to Australian specification vehicles introduced onto the local market from 1st January 1986. Valvemaster should not be used in vehicles fitted with catalytic converters. Important disclaimer: This list has been compiled from a number of public domain sources and is accurate to the best of our knowledge. Whilst every care has been taken we cannot accept responsibility for errors, omissions or innacuracies in the list. Please notify us of any errors or omissions via e-mail or on freecall 1800 00 1066. This list applies only to pre 1986 Australian specification vehicles introduced onto the local market via automotive manufacturers or authorised importers. Owners of privately imported vehicles may need to make their own enquiries.