What is the difference between a mineral and synthetic oil?

There are several different Classic Engine Oils products The Classic Engine Oils are supplied directly from Millers Oils in the UK and have been specifically developed to enhance and protect the engines of desirable Vintage, Veteran and Classic vehicles.  The product links within the text below will take you directly to our online shop. Millerol – non detergent monograde The…

Not at all. Modern engines are designed to run on an oil with very low viscosity (thin), such as 0W and 5W. These are too weak for older engines, which have been designed to operate with a viscosity of 20w in winter and 30 or 40 in summer. However, our later formulations, Pistoneeze and all…

Here we try to summarise what are the specific characteristics and advantages of synthetic oils? As with mineral oils, there are differing levels of quality within the definition of synthetic oils, but the general advantages are: Better flow at low temperatures enabling thinner oils to be manufactured. Thinner oils are required by modern engine designers…

We are often asked ‘Can I use synthetic oil in my Classic Car?’  The fear of using synthetic oils in your classic vehicles is a thing of the past – or at least it is with the Millers Oils classic range.  Our technical team has used their detailed knowledge of synthetic technologies and additives so…

Vintage cars/bikes, ie. pre-WW2, had very primitive oil filtration systems and used non-detergent oils, such as our Millerol range. The Millerol range contains anti-wear and anti-corrosion additives, but does not contain detergents which can attack yellow metals.  A lower viscosity oil would be needed in the winter, such as Millerol 30 and a higher viscosity…