Oil Viscosity Explained
The oil values shown on this website (and everywhere else) can be broken down to show the minimum and maximum operating temperatures.
The first number before the dash in the oil type is the lower operating temperature, this is usually where the engine sits during start up.
The second number (after the dash) indicates the temperature of the oil while it is flowing around the engine during heavy load.
The manufacturer of your automobile details the oil type to use in the manual but we also list it for many of the popular makes and models on this site.
