[OneM]

I just had my oil pan gasket leak as well. Did a little research and most likely causes:

1. oil not up to temperature + driving on load = pressure increases = blows gasket

2. over-filling engine oil = same, pressure increase

The 1M has an extra radiator plus an oil cooler ..it takes forever to get the oil up to temp. So now I'm on 0W-30 (instead of 5W-30), and the oil comes up to temp a lot faster. My trips are fairly short so depends on individual.