You're about to change your oil, and you're wondering which of the lubricants available on the market you should choose. It's really a choice that depends on your vehicle.
The right lubricant will meet international standards (ACEA, API, ILSAC, JASO), as well as the specifications of each manufacturer. (ex: Renault RN0710, PSA B71 2290, BMW LL-04…)
To make your choice, first check your vehicle's maintenance manual to find the standard or authorized lubricant recommended by the manufacturer. This should match the information on the back of the product.
You should also choose a lubricant whose viscosity matches your vehicle's needs. Viscosity is a measure of resistance to free flow, and is listed in two grades: a cold grade and a hot grade.
When should you change your oil? Oil change frequency should be based on several factors: the manufacturer's recommendation, generally listed in km or in years, and the kind of driving you do most often: city, rural, or highway. You can always visit a nearby Total shop for more advice.