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7th June 2012, 11:45 | #1 |
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rover 75 diesel tourer Join Date: Feb 2011
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diesel fuel economy
hi anyone any advice
does the diesel engine perform with greater economy if i have a road speed of 40mph and engine revs of 1600 and use 5th gear OR a road speed of 40mph and engine revs of 1800 and use 4th gear this question applies when i am choosing the gearing for hill climbing thanks for any advice paul |
7th June 2012, 11:50 | #2 |
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As the diesel delivers it's peak torque at 2,000 rpm, whichever gear which get's you closest to that!
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7th June 2012, 11:53 | #3 |
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Doesn't it depend on how steep the hill is ?
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7th June 2012, 15:56 | #4 |
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Logically the lower the revs per mile the more economic it is. But.... that may well be putting too much stress on your drive train...
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7th June 2012, 16:17 | #5 | |
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Quote:
Craig
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7th June 2012, 16:26 | #6 |
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It's true of any engine. Old, new, petrol gas or diesel.
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7th June 2012, 17:23 | #7 |
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That question is far too complex for me right now!
Just sat down for a biscuit before doing another handbrake Mod and pesky belts change on a CDT
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7th June 2012, 17:47 | #8 |
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rover 75 diesel tourer Join Date: Feb 2011
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thanks to everyone
does this mean that the diesel engine is operating best at 2000 RPM at whichever gear is necessary to suit the road conditions inorder to achieve maximum torque from the engine ? and that to obtain the maximum mpg it is best to drive at the maximum road speed for the minimum engine rpm? |
7th June 2012, 19:49 | #9 | |
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