The information below applies to all tires, not just the vehicles covered here.
The letter on the sidewall of the tire following the dimensional specifications indicates the speed limit for the tire. If a letter is specified «Q» - the maximum speed is limited to 160 km / h, «S» - 180 km / h, «T» - 190 km / h, «H» - 210 km / h.
Tires for winter use are designated by letters «M+S».
The date of manufacture can be determined by the three-digit DOT number. Since 1990, this number has been followed by a small triangle. For example: number 187 indicates that the tire was produced in week 18, 1997. If there is no triangle, you have tires before 1990.
In this case, when it comes to a minibus, it is also necessary to take into account the value of the axle load. This applies to both single and dual tyres.