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Thanks for the added context. It made me think. I guess I should've qualified my comment with a note about those vehicles being American-made V8s. Diesel engi

Thanks for the added context. It made me think. I guess I should've qualified my comment with a note about those vehicles being American-made V8s. Diesel engines tend to have higher lubrication requirements thus they have larger oil pans. I see that those BMW engines you listed are gassers so I took a look at their specs to see why they would need such large oil reservoirs. Twin turbos. Mounted in the engine valley. High heat in that configuration and high oil consumption as a result - up to 1 qt/1000 miles. [0] That's crazy. I can drive my V8 powered, non-turbo engine Bronco 10000 miles between oil changes using full synthetic oil without needing to add a full quart of oil and it has more than 330k miles on the odometer. I see now why those BMWs may need a huge oil pan. It is an attempt to compensate for the consequences of design decisions that they knew would create problems. Those engines only need a 10 qt reservoir because they would burn through a smaller volume so fast that no one would buy the vehicle because it required them to check the oil every day and to carry oil so that there was less chance of destroying the engine due to running it low. I was not aware of BMW engines having such huge reservoirs and now that I am I can be glad that I have never considered owing one. I didn't look at Toyota or other foreign manufacturers who also built V8 engines. Maybe I should educate myself. [0]https://bmwtuning.co/n63-engine-problems/ https://bmwtuning.co/n63-engine-problems/

bijowo1676 12d ago
these BMW twin turbos are marvels of engineering, 567 horsepowers. The best engine BMW has ever made. This engine allows you to have a huge family hauler (BMW X7) and drive like a BMW M3 like you stole it. Imagine hauling 3 kids and ski gear for 5 people up the twisty mountain road in the Sierras. and by the way on the highway, X7 M60i gets you 21 mpg on the road. Amazing feat by the German engineers. and I never had do top off the oil, just change oil every 7500 miles. Zero oil leaks. All of the notorious BMW V8 twin turbo issues were related to the early design and were solved in N63TU in 2014. The engines are rock solid, but the car has other weak parts (transfer case and front diff)
- doodlebugging 12d ago
  >All of the notorious BMW V8 twin turbo issues were related to the early design and were solved in N63TU in 2014. That's great! It sounds like the early engine had lots of problems but BMW iterated until they solved them, and ended up having a high performance engine for those who stuck with the brand. I know that I have been burned buying the first year model of a vehicle and then having to absorb all the downtime for things that I felt they could've addressed before sending them out to dealerships. 21 mpg on the road from an engine like that is pretty impressive. Like I mentioned, I have never considered owning a BMW but it sounds like they are solid vehicles, after all the usual iterations, just like the other manufacturers. Enjoy the drives!

bijowo1676 12d ago

these BMW twin turbos are marvels of engineering, 567 horsepowers. The best engine BMW has ever made. This engine allows you to have a huge family hauler (BMW X7) and drive like a BMW M3 like you stole it. Imagine hauling 3 kids and ski gear for 5 people up the twisty mountain road in the Sierras. and by the way on the highway, X7 M60i gets you 21 mpg on the road. Amazing feat by the German engineers. and I never had do top off the oil, just change oil every 7500 miles. Zero oil leaks. All of the notorious BMW V8 twin turbo issues were related to the early design and were solved in N63TU in 2014. The engines are rock solid, but the car has other weak parts (transfer case and front diff)

doodlebugging 12d ago
>All of the notorious BMW V8 twin turbo issues were related to the early design and were solved in N63TU in 2014. That's great! It sounds like the early engine had lots of problems but BMW iterated until they solved them, and ended up having a high performance engine for those who stuck with the brand. I know that I have been burned buying the first year model of a vehicle and then having to absorb all the downtime for things that I felt they could've addressed before sending them out to dealerships. 21 mpg on the road from an engine like that is pretty impressive. Like I mentioned, I have never considered owning a BMW but it sounds like they are solid vehicles, after all the usual iterations, just like the other manufacturers. Enjoy the drives!