Should a TD5 be driven at low revs?

**Pedro_The_Swift** · 16th August 2007, 02:09 PM

I'll probably get howled down for this,,
but across the desert BUB91 was quite happy to be loaded right up at 1000 revs, even lower when you had to,,
I think the 8 cylinders make a big difference down low.

tombraider · 16th August 2007, 02:10 PM

Originally Posted by Pedro_The_Swift

I'll probably get howled down for this,,
but across the desert BUB91 was quite happy to be loaded right up at 1000 revs, even lower when you had to,,
I think the 8 cylinders make a big difference down low.

Inevitable

Arrrooooooooooooooooo.....

Zute · 16th August 2007, 02:13 PM

Ive been driving many different turbo diesels for over 20 years. The FM12 Volvo I drive at work now, uses a rev range between 1200rpm to 1800rpm

Ive found driving my D2 td5 to a max rev's of 2500rpm (instead of 3000rpm) I can easily get 10.5-11 litres/100ks. Even on a resent trip from ACT to Thredbo and back. This was driving at and just above the speed limit, passing when I could and using cruise control.
The Volvo gets 48l/100ks pulling 32 tonne-ish.

**Pedro_The_Swift** · 16th August 2007, 02:14 PM

just my 2 cents worth,,,

**isuzurover** · 16th August 2007, 03:45 PM

Originally Posted by Zute

Ive been driving many different turbo diesels for over 20 years. The FM12 Volvo I drive at work now, uses a rev range between 1200rpm to 1800rpm

Is that the D12D? I thought 1100-1800rpm. Not that 100 rpm makes a big difference.

The world's biggest diesels have a redline of around 125 rpm

**Pedro_The_Swift** · 16th August 2007, 04:02 PM

I'll have to search for that pic of the ship engine I posted ----

found it----

**Captain_Rightfoot** · 16th August 2007, 06:40 PM

Originally Posted by Pedro_The_Swift

I'll probably get howled down for this,,
but across the desert BUB91 was quite happy to be loaded right up at 1000 revs, even lower when you had to,,
I think the 8 cylinders make a big difference down low.

That's the great thing about petrol, and all that capacity and cylinders.

**George130** · 16th August 2007, 08:31 PM

OK. Mine revs up to 3000 on take off. If take of up a steep hill from near slow then up to 4000. Normal cruising once it's moving comes down to between 2-2500rpm. Mine is not standard though.

**Graeme** · 16th August 2007, 09:32 PM

Originally Posted by Pedro_The_Swift

I'll probably get howled down for this,,
but across the desert BUB91 was quite happy to be loaded right up at 1000 revs, even lower when you had to,,
I think the 8 cylinders make a big difference down low.

I try not to let my TD5 get down to 500rpm - its starts to complain if I open the throttle. 900 is much better!

**BigJon** · 17th August 2007, 07:39 AM

Originally Posted by Pedro_The_Swift

I'll probably get howled down for this,,
but across the desert BUB91 was quite happy to be loaded right up at 1000 revs, even lower when you had to,,
I think the 8 cylinders make a big difference down low.

On a recent trip my 3.5 Rangie was happy to pull 3rd gear from revs so low as to let the tacho needle virtually sit at zero rpm...

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