To make matters more tricky for teams, the FIA had placed a limit on the oil consumption of any power unit at no more than 1.2 liters per 100km. That works out to around 60ml per lap. For the 2018 season, these limits were halved to 0.6 liters per 100km or around 30ml per lap. These reduced oil consumption limits still exist today.With the limit placed on the consumption rate and needing to ensure enough oil is left at the end of the GP, teams must adjust their oil viscosity from race to race. Too much viscosity equates to more weight at the start of the GP, and too little means higher consumption and potentially breaking the FIA rules on oil consumption.

国际汽联规定每 100 公里 0.6 升或每圈约 30 毫升。消耗率受到限制，车队必须根据比赛调整机油粘度。排位赛使用低粘度机油，可以作为额外燃烧燃料，从而获得更大的动力输出。这是排位赛期间的一种有用策略。

然后，车队可以为比赛本身换上粘度更大的机油。干式油底壳基本不会用到10w60这种粘度的机油。

只能说现在的规则更加严苛。