http://nulon.com.au/facts/Factsheet 103.pdf
"Facts and Fallacies
Australians traditionally are of the opinion that our conditions are tougher than anywhere else
in the world, hence we must have thick, gutsy oils to provide protection. By and large, this is
absolute rubbish. In most parts of Australia conditions are quite temperate. Conditions in
Australia are no tougher than in the Arizona desert or, to the other extreme, Alaska. We are
fortunate in that we can use the same viscosity oil all year round. In Europe and North America
a car has to be prepared for the winter months, and again for the summer months. Part of the
preparation includes a change in the viscosity range of the engine oil to cope with the extreme
temperature conditions.
Some unethical manufacturers are producing and marketing oils of such high viscosity they are
not recognised as meeting industry standards. The general public and resellers are being led to
believe high viscosity oils offer a greater level of protection and reduced oil consumption"
"Facts and Fallacies
Australians traditionally are of the opinion that our conditions are tougher than anywhere else
in the world, hence we must have thick, gutsy oils to provide protection. By and large, this is
absolute rubbish. In most parts of Australia conditions are quite temperate. Conditions in
Australia are no tougher than in the Arizona desert or, to the other extreme, Alaska. We are
fortunate in that we can use the same viscosity oil all year round. In Europe and North America
a car has to be prepared for the winter months, and again for the summer months. Part of the
preparation includes a change in the viscosity range of the engine oil to cope with the extreme
temperature conditions.
Some unethical manufacturers are producing and marketing oils of such high viscosity they are
not recognised as meeting industry standards. The general public and resellers are being led to
believe high viscosity oils offer a greater level of protection and reduced oil consumption"