I did a search, and didn't see an answer to this. I just bought a 10 hp B&S riding mower. The manual says to change the oil after 5 hours of break in. Would I be better served with Mobil 1 10w30 or 0w30 German Castrol? The Mobil 1 has moly and boron, but the Castrol is slightly thicker and may not break down as much. But then again, maybe the thinner Mobil 1 would be better for cooling?
As an aside, the break in oil sure smells bad. Sulfur?
As an aside, the break in oil sure smells bad. Sulfur?