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Originally Posted by deutsch100
A-ha, because the 4.8i engine is basically an ///M engine, and all M engines burn oil (if some of you didn't know the origins of the E70 4.8i motor). The engine used in the E70 4.8i, is bascially the same engine in the old M5 (not the current M5) and the Z8 and Z8 Alpina. The 3.0si E70 engine is not M derived at all.
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Well, they are both V8s, but I don't think that makes them the same engine, or makes the N62 a descendent of the S62 M V8 any more than any other BMW engine.
The E70 uses the N62 engine. The M V8 engines were known as S62 models. While they are both V8s, and have similar architecture, they have different bores, strokes, intake systems, cooling systems, lubrication systems....well, you get the drift.
I don't see any connection on the oil consumption issue. Nearly all BMW engines have used some oil. My last five vehicles have averaged around a litre every 6000 km, which doesn't bother me. It may cause distress to some owners. There isn't a connection between the 4, 6, 8, 10, or 12 cylinder models in respect of the oil consumption. Some specific examples of BMW engines don't use oil. Good luck for those owners.
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