Oh dear what’s up with the M6, mine’s in for a new fuel pump as I type.
Spun a shell, nipping it up and bending the crank in the process. If you have the V10, I’m (now) informed that you’re not to run it on the 10/40 they tell you to use but use thinner stuff. Also, the new crank and rods use the same part number but are visibly different parts, much more beefy! But obviously there isn’t an inherent problem with the engine and therefore no need for a recall…..bastards!
The bearing issue is well known. I replaced mine as a caution. I don’t think changing to thinner oil is a full answer as the Vanos pump that runs at 1000psi can have issues creating the pressure on thin oil.
Most important thing is not to push the engine until the oil is fully warm and thinned down.