always let gearbox do its own thing
it is normally in 5th (about 1800rpm)- will sometimes go into 6th if a bit downhill.
Printable View
always let gearbox do its own thing
it is normally in 5th (about 1800rpm)- will sometimes go into 6th if a bit downhill.
ok Dennis, do you use sport mode or normal drive?
The reason I ask is 85 kph is very slow and most auto gearboxes keep trying to shift up. Personally I would have thought 85 kph in fifth towing a heavy van would be putting quite a lot of strain on the auto.
I'll stand corrected if I'm wrong.
I find even with my 2.7 D3 that at around 110 to 115 kph the Disco drives a whole lot better when towing our 2.5 ton van and at that speed I'm usually in fifth.
hi Terry
thanks for your comments
leave box in normal mode
box shows no sign of wanting to shift up - can manually shift up but smallest increase in load causes it to shift back down.
dont understand why 5th would cause more load - need a certain amount of output torque from gearbox to keep van & car moving (to overcome rolling resistance etc). With higher gear reduction in 5th gear versus 6th gear this means less torque at torque converter = less load on torque converter.(this is from my engineering background).
Have towed at higher speeds & gearbox stays in 5th but I am retired & in no hurry plus get better fuel consumption.
But I am also interested in your experience re 6th gear - even when not towing, car lightly loaded & level road it does not want to go into 6th in normal mode - have to manually force it up. Have complained to dealer before but "no errors"
Also find box very slow to downshift on steeper hills when towing - revs drop to around 2000rpm or less, car is slowing, flat out accelerator & box does not want to shift down (eventually does just as I am thinking of a manual down shift before we stall)
car is a 2.7l disco 3 SE
very interested in your experience.
regards, Dennis