 What is Shell Unleaded low aromatic petrol/fuel? Shell Unleaded low aromatic is specially designed unleaded petrol which has an octane rating of 91 (the same as regular unleaded fuel) and which complies with the Australian Fuel Quality Standards Act. It has been specially designed to contain low levels of aromatic compounds such as benzene, toluene and xylene. These aromatic compounds are associated with the narcotic effects from sniffing petrol. Can I use Shell Unleaded low aromatic in my car/bike/boat/small engine? Shell Unleaded low aromatic fuel can be used in place of regular unleaded fuel in passenger vehicles, boats, vans and petrol motor 4WDs. Importantly, because it has a 91 octane rating, the same as regular unleaded petrol, these fuels can be mixed in your petrol tank and will not affect your vehicle’s performance, except where noted below. Engine operation when using Shell Unleaded low aromatic is the same as for regular unleaded petrol, except that in some cold climates some engines may run slightly rough to start with due to the low vapour pressure of the fuel, however, running will improve as the engine warms up. Mechanically the engine will not be affected and will not be damaged when using Shell Unleaded low aromatic. As the density of Shell Unleaded low aromatic is slightly lower than standard unleaded petrol some engines may benefit from a carburettor adjustment as part of the normal vehicle servicing. If your vehicle requires premium unleaded petrol you are advised to check with your vehicle’s manufacturer before using Shell Unleaded low aromatic. Premium Unleaded remains available at the Coles Express and Shell branded service stations that carry Shell Unleaded low aromatic. For pre 1986 engines the same restrictions that apply to standard unleaded petrol apply to Shell Unleaded low aromatic petrol. If vehicles currently using unleaded petrol require the addition of a valve seat recession additive such as Valvemaster, then the same additive will need to be used with Shell Unleaded low aromatic. |