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Old 10-20-2017, 11:44 PM
tofufi tofufi is offline
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Join Date: Feb 2016
Location: Bristol, UK
Vehicle: 740 turbodiesel
Posts: 38
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Apologies for bumping up an older thread, just wondered if anyone had any thoughts on how accurate the figures above are?

I've got a 740 with M46 gearbox, and it does approx 3000rpm at 70mph according to the rev counter and sat nav. It definitely has the 3.54 rear end.

My old 940 td auto had a similar reading - approx 3000rpm at 70mph.

Yet everything I read suggests that 3000rpm should be closer to 77mph.

Are the rev counters just slightly optimistic, or is it possible the diesel versions of gearboxes had different ratios? My friend had a petrol (gas) 240 wagon which was only doing 2500rpm at 70mph, made for more relaxed cruising... I'd love to get that if I could.
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