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      12-16-2013, 01:10 PM   #67
tiburonh
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Quote:
Originally Posted by coconut780 View Post
Regardless though, whatever reason anyone may have for choosing diesel is their own, it's just the fuel cost savings argument that doesn't hold up.

162.0 - 164.0 g/km C02 (xDrive30d) vs 197,0 - 199,0 g/km C02 (xDrive35i)
Now this math holds up: 21% fewer emissions
Wow- thanks for doing that calculation. Very useful support for the diesel cause!

And happy holidays to all on this thread.
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      12-23-2013, 11:03 PM   #68
Jenya B
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Quote:
Originally Posted by coconut780 View Post
Canadian Annual Fuel Costs based on 20,000 KM, Premium Gas at $1.099 c/L, Diesel at $1.169/L (pricing in my city today) and based on BMW.ca Consumption figures.

35i 9.6L/100 KM: $2110.08 per year
35d 7.6L/100 KM: $1776.88 per year
and just for fun 50i 12.2L/100 KM: $2681.56 per year

Diesel saving per year: $333.20 or $27 a month or 4.5 Years to save $1500.

Agreed that the financial benefit of the diesel fuel economy is a wash. Comes down to a personal choice as there is no clear winner economically.
But if you guys count REAL consumption wich is 17 L /100 vs 10,5 L / 100 , diesel will win .
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      12-24-2013, 12:13 AM   #69
coconut780
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Originally Posted by Jenya B View Post
But if you guys count REAL consumption wich is 17 L /100 vs 10,5 L / 100 , diesel will win .
There's no possible way the 35i will get you as bad as 17L/100 km...you must have one heavy foot!
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      01-26-2014, 02:48 PM   #70
apexkingjusto
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Excited we are finally picking the truck up tomorrow! Now time to find a good inexpensive enclosed car trailer
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      01-26-2014, 04:19 PM   #71
Shaw
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NICE!!!!
B sure to upload some pics when you can....all the best!
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      01-27-2014, 08:40 AM   #72
reach.ran@gmail.com
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Quote:
Originally Posted by coconut780 View Post
Regardless though, whatever reason anyone may have for choosing diesel is their own, it's just the fuel cost savings argument that doesn't hold up.

162.0 - 164.0 g/km C02 (xDrive30d) vs 197,0 - 199,0 g/km C02 (xDrive35i)
Now this math holds up: 21% fewer emissions
One more thing to consider is that the MSRP difference is $1500. However, I got my car for $500 over invoice. When I compared the invoice difference, it was only $1200.
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      01-28-2014, 06:39 AM   #73
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Got the car last night, took some crappy photos but will try to take new ones this weekend and upload. Car is very nice, I didn't get to drive it, my wife drove it home. I did setup the Iphone for her. Was very nice. Harmon Kardon system was decent, but not nearly as good as the EPS in my M3. Love the HP/TQ dash and then the one that shows roll and position. Will play with it more this weekend and report back!
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      04-07-2014, 11:30 PM   #74
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Quote:
Originally Posted by tiburonh View Post
The 35 diesel will be somewhat slower off the line than the 35 gasoline, but the torque lets it accelerate much better than the gasoline when you are at highway speeds. So it's better for passing and emergency maneuvers.
Sorry, I know I don't post here much, but I was browsing for insight on our recently ordered F15 35d and I couldn't help but reply to this. You seem to have the two backwards. TQ lets a vehicle jump off the line, but HP is what it takes to get the job done at highway speeds. 1000ft/lbs of TQ is nothing if it's spinning at 10RPM like a water wheel. A high HP engine is just an an engine that makes its TQ at high RPM.

Remember, (or learn for some I'm sure since this isn't a well understood topic) tq is the only real thing an engine makes. HP is a mathematical expression of an engine's ability to do work over time. It's the outcome of a simple formula; HP=(TQxRPM)/5252.

The math wizards among you will notice that if this is true (which it is) then TQ and HP will always be the same at 5252 RPM, and they are. Every engine on every car ever made makes the exact same amount of HP as it makes TQ when RPM equals 5252. If you play around with the formula (or just look at it) a bit you'll see that above 5252 RPM, HP is always higher than TQ, (since you're dividing by a smaller number than you're multiplying by) and below 5252 RPM, HP is always lower than TQ. The 35d TQ curve is obviously much narrower than the 35i, because if it could hold its 413 ft/lbs TQ to 5252 rpm it would make 413 HP. Instead it falls off. The problem is that it's in the upper rpm range where all the real work gets done when it comes to acceleration. This is why the 35i bests the 35d by a full .7 seconds in a sprint to 60mph. The 35d would get a VERY momentary lead and then watch the 35i pull away. Having driven both, the 35i is noticeably faster, but the 35d is just fun. TQ is king for the butt dyno, but it is always better to make more HP because you can take advantage of gearing. There are very few scenarios where a 35i will lose to a 35d and they almost all involve very short races, probably shorter than stoplight to stoplight.

Last edited by chiplee; 04-09-2014 at 06:19 PM.. Reason: Clarification
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      04-12-2014, 04:03 AM   #75
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Quote:
Originally Posted by chiplee View Post
Sorry, I know I don't post here much, but I was browsing for insight on our recently ordered F15 35d and I couldn't help but reply to this. You seem to have the two backwards. TQ lets a vehicle jump off the line, but HP is what it takes to get the job done at highway speeds. 1000ft/lbs of TQ is nothing if it's spinning at 10RPM like a water wheel. A high HP engine is just an an engine that makes its TQ at high RPM.

Remember, (or learn for some I'm sure since this isn't a well understood topic) tq is the only real thing an engine makes. HP is a mathematical expression of an engine's ability to do work over time. It's the outcome of a simple formula; HP=(TQxRPM)/5252.

The math wizards among you will notice that if this is true (which it is) then TQ and HP will always be the same at 5252 RPM, and they are. Every engine on every car ever made makes the exact same amount of HP as it makes TQ when RPM equals 5252. If you play around with the formula (or just look at it) a bit you'll see that above 5252 RPM, HP is always higher than TQ, (since you're dividing by a smaller number than you're multiplying by) and below 5252 RPM, HP is always lower than TQ. The 35d TQ curve is obviously much narrower than the 35i, because if it could hold its 413 ft/lbs TQ to 5252 rpm it would make 413 HP. Instead it falls off. The problem is that it's in the upper rpm range where all the real work gets done when it comes to acceleration. This is why the 35i bests the 35d by a full .7 seconds in a sprint to 60mph. The 35d would get a VERY momentary lead and then watch the 35i pull away. Having driven both, the 35i is noticeably faster, but the 35d is just fun. TQ is king for the butt dyno, but it is always better to make more HP because you can take advantage of gearing. There are very few scenarios where a 35i will lose to a 35d and they almost all involve very short races, probably shorter than stoplight to stoplight.
Finally a great explanation of the relationship between torque and horse power.
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      04-12-2014, 12:44 PM   #76
igorsvrub
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Quote:
Originally Posted by chiplee View Post
Sorry, I know I don't post here much, but I was browsing for insight on our recently ordered F15 35d and I couldn't help but reply to this. You seem to have the two backwards. TQ lets a vehicle jump off the line, but HP is what it takes to get the job done at highway speeds. 1000ft/lbs of TQ is nothing if it's spinning at 10RPM like a water wheel. A high HP engine is just an an engine that makes its TQ at high RPM.

Remember, (or learn for some I'm sure since this isn't a well understood topic) tq is the only real thing an engine makes. HP is a mathematical expression of an engine's ability to do work over time. It's the outcome of a simple formula; HP=(TQxRPM)/5252.

The math wizards among you will notice that if this is true (which it is) then TQ and HP will always be the same at 5252 RPM, and they are. Every engine on every car ever made makes the exact same amount of HP as it makes TQ when RPM equals 5252. If you play around with the formula (or just look at it) a bit you'll see that above 5252 RPM, HP is always higher than TQ, (since you're dividing by a smaller number than you're multiplying by) and below 5252 RPM, HP is always lower than TQ. The 35d TQ curve is obviously much narrower than the 35i, because if it could hold its 413 ft/lbs TQ to 5252 rpm it would make 413 HP. Instead it falls off. The problem is that it's in the upper rpm range where all the real work gets done when it comes to acceleration. This is why the 35i bests the 35d by a full .7 seconds in a sprint to 60mph. The 35d would get a VERY momentary lead and then watch the 35i pull away. Having driven both, the 35i is noticeably faster, but the 35d is just fun. TQ is king for the butt dyno, but it is always better to make more HP because you can take advantage of gearing. There are very few scenarios where a 35i will lose to a 35d and they almost all involve very short races, probably shorter than stoplight to stoplight.
Good explanation, thanx!!!
But for sure 3.5 i will never beat 4.0d(in Europe), suppose same 3.5d in US.
Because of the power and because of torque!!!
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      02-27-2017, 04:57 PM   #77
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prospective new X5 owner need some help

Hello,

I am new to this website and to the BMW brand. I am researching X5's to buy right now and trying to make a decision between the xdrive35i and xdrive35d? Does anyone have the diesel and could explain how it drives? With such a high torque figure I would imagine it would be just as much fun, or close enough, only much better fuel economy. And diesel fuel is less expensive than premium. Have there been any mechanical issues or general problems with the car? I would be buying either a '14 or '15.

Thanks
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