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  #1  
Old 11-23-2019, 11:20 PM
coiedulci coiedulci is offline
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How come B47 engine only uses 5 liters of oil ?

The old 2000 cmc diesel N47 used 5.2 liters of oil, but the new B47 2000 cmc only needs 5 liters. How come ?

Is or is it not a new engine from scratch ? The timing chain is compatible with old one, and it makes sense not to design a timing mechanism from scratch.
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Old 11-24-2019, 09:02 AM
John in VA John in VA is offline
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You will have to ask the designers! The oil capacity of the same engine can differ, for example in a rear wheel drive vs. xDrive due to the shape of the oil pan.
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Old 12-04-2019, 01:16 AM
coiedulci coiedulci is offline
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Well, yeah, but a RWD N47 uses 5.2L and a RWD B47 only 5L. So we are comparing apples to apples.

Even though xDrive has a different oil pan, IMHO the engines should need and should have the same oil quantity ( RWD N47 vs AWD N47 )
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Old 12-04-2019, 02:07 AM
Autoputzer Autoputzer is offline
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E46 M3's (3.2 liter, in-line six) only took five liters of oil, where most BMW in-line six's take 6.5 liters of oil.

I had a couple of 2.0 liter Nissan's back in the 1990's. They only took 3.25 liters of oil.
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Old 12-14-2019, 03:05 PM
KWStandard KWStandard is offline
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FWIW, my B47 uses 5.5 liters at every oil change, and I've done a few - now at 157,000 miles... (Not an X-Drive)
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