AnswerID: 485430 Submitted: Thursday, May 10, 2012 at 09:16
I've seen a few people talking about changing the highway revs on big 4wds of late.
It seem to me thay don't get it.
This is not a light pasenger car that has plenty of surplus power and is light incomparison to the engine capacity and at 100KPH is traveling at well below (like 1/2 or 2/3) its capable road speed.
Ya patroll is over 2 tonnes unloaded, proabably over 3 tonnes fully loaded, its a big lump of a thing and is pushing a lot of air in front of it.
The engine and gearing will be designed to keep the engine on the peak of its torque curve, at highway speeds, this is where it produce the best highway fuel economy.
This is particularly so of diesel engines.
There is no way arround the fact that the big nissan chews the juce, if ya try and drive it like a pasenger car on the highway it will get expensive.
Get used traveling a bit slower and not being the fastest thing on the road
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FollowupID: 760691 Submitted:
Thursday, May 10, 2012 at 11:26
GT Campers posted:
yep bantam you are right in general, also many EFI/managed cars have a lean cruise strategy at around 100-110km/h and this gets all messed up with changes away from standard gearing
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