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RPM on the 4,8 GRX Auto at 120 km/h???

Posted: 18 Nov 2015 17:18
by petri oosthuizen
Can anyone please assist me with 1st hand info here, apologies if this has been discussed before - if so, please give me the link.

What is the RPM on the 4,8 GRX Auto, at 120 km/h?? I'm very interested in buying one, and I just need to know what RPM's it cruises at.

Thanks, appreciated!! :blonde:

Re: RPM on the 4,8 GRX Auto at 120 km/h???

Posted: 18 Nov 2015 19:27
by NMAD
At 110 km the RPM on mine showed 2000 today so at 120km/h it should sit around 2250

Re: RPM on the 4,8 GRX Auto at 120 km/h???

Posted: 18 Nov 2015 19:33
by Tinus lotz
Depends on your tires bigger tires lower refs i do 2100 at 120 gps if i remember correctly

Re: RPM/Consumption on the 4,8 GRX Auto at 120 km/h???

Posted: 19 Nov 2015 09:28
by petri oosthuizen
Thanks guys. That's quite low and nice.
I am used to the lower gearing of the V6 Cruiser and the EFI 100, which sits at around 3000 RPM at about 120/125........and I love low RPM's at highway speeds.
I've edited the Thread Header too, to include consumption. How much can I expect, around 5-6 km/litre at 120??

Re: RPM on the 4,8 GRX Auto at 120 km/h???

Posted: 19 Nov 2015 10:51
by AndriesS
Big difference between the auto and manual then, manual runs at almost 3k at 120. so in theory the GRX should have better consumption..

Re: RPM on the 4,8 GRX Auto at 120 km/h???

Posted: 19 Nov 2015 13:23
by Tinus lotz
You can expect 6km per liter when driving normal

Re: RPM on the 4,8 GRX Auto at 120 km/h???

Posted: 19 Nov 2015 14:16
by Grant
Hi Tinus,


This is for the petrol guys who worry about fuel consumption and have to drive normally, sad day :rolling: :rolling: :rolling: :rolling: :rolling: :rolling: :rolling:

Some other words that explain normal

natural ,orderly, ordinary, regular, routine, traditional, typical, average, commonplace, general , mean , median , standard , accustomed,
acknowledged , conventional , customary , habitual , prevalent , run-of-the-mill , typical, unexceptional


Now for how we should be driving and behaving, ( this is what diesel smoke does to you)


abnormal , different , disorderly , extraordinary, irregular, rare , uncommon , untraditional , unusual , exceptional , extreme
eccentric , insane , irrational , odd , strange , unbalanced , unconventional

Re: RPM on the 4,8 GRX Auto at 120 km/h???

Posted: 19 Nov 2015 14:49
by Herrie
As ek reg onthou met my Patrol 4.5 doen 2400rpm op 120km/h of dit is 2600 en sal net seker maak more as ek werk toe ry.

Re: RPM on the 4,8 GRX Auto at 120 km/h???

Posted: 19 Nov 2015 14:55
by NMAD
I also get around 6,5km/l open road (tyres are 1.2% larger than stock)

Re: RPM on the 4,8 GRX Auto at 120 km/h???

Posted: 19 Nov 2015 14:59
by Tinus lotz
My 4.2 diesel gives me 6.7 at a snails pace really its not lekke driving a nomally asperated 4.2 when you are used to 4.8 power ...lets see if it changes after turbo is fitted ....iam gonna try for 500nm and 145kw ....my 4.8 just changes on what you ask of it ....loose sand dunes i have gone down to 2km per liter ....