Arly, the grade is only one aspect of choosing the correct lubricant for your vehicle.
European cars rarely settle for the basic "API SM" rated oils that are sold in the U.S. They tend to require oils with lower NOACK volatility standards and greater HT/HS viscosities than required to meet API standards. Newer vehicles have limits set on the additive levels to ensure durability of emissions equipment.
Check your owners manual and see if your vehicle requires more than just the API SM that the Quaker State oil meets.
If the price on the Quaker State is simply too good to resist, then plan on doing a more frequent oil change than what the vehicle mfgr stipulates. The drain intervals are determined based on certain criteria, one of which is using a oil that meets required specifications and not just the basic viscosity grade.