The 10W60 is the ONLY approved oil for you car. The spec changed for the early M5s. Newer M5s can use either.billrM5 said:OK
Needed to add a quart this weekend,I look in the 2000 M5 manual, it says to use Castrol 10W60, but under the hood there is a sticker (looks like from the factory) that says BMW recommends Castrol 5W30 :confused2
Which one should I use ?