Prado Tyres
Submitted: Monday, May 14, 2001 at 00:00
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Mario Gerhard
I am interested to know what is the correct tyre pressures for the standart Prado
Dunlop Grand Trek tyres. The vehicle is used mainly for normal commuting and also towing a 16 caravan. The manual states 26 psi, The factory has them set on 34 psi. Can fellow Prado owners please help?
Reply By: stephen mills - Monday, May 14, 2001 at 00:00
Monday, May 14, 2001 at 00:00
36 P S I !!
if you want resonable to good tyre mileage
steve
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Follow Up By: Joe - Thursday, May 17, 2001 at 00:00
Thursday, May 17, 2001 at 00:00
Well 36 psi will give the best fuel consumption, but with GrandTreks I wouldnt be venturing onto anything other than bitumen at those pressures. Those tyres are just too sensitive to impact puncturing to do that !
Just BTW - 36psi is about the most you should ever inflate a radial tyre to.
Good luck
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Reply By: Narelle - Sunday, May 20, 2001 at 00:00
Sunday, May 20, 2001 at 00:00
The Toyota dealership where I purchased our vehicle and also where its serviced suggest 40 psi. This was my first question as I checked the tyre pressures when I collected the car, and checked it against the recommendation but the service dept. reckon thats best, so there you go - another expert opinion.
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Reply By: Norm - Monday, May 21, 2001 at 00:00
Monday, May 21, 2001 at 00:00
I have a Prado with 50,000km on the odometer.
Mostly done on road but also a number of weekends off road, inc. Land Cruiser club off road training, Madmans Territory
Hill End,
Sunny Corner-
Sofala trip. I have run 34psi in them since brand new and they are still going strong.
A fellow trades person who I deal with owns a tyre
shop and he also runs 34psi in his Prado tyres.
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Reply By: Peter Gordon - Monday, May 28, 2001 at 00:00
Monday, May 28, 2001 at 00:00
An expert tyre fitter gave me some advise a while back. He said that the correct pressure for any tire on the road is cold pressure + 4-5psi (dont ask me to metricate that) after 1 hours running. It doesnt matter if you are on highway bitumen or dirt road. You just need to take some time and a lot of readings to form your own pattern. If for example your tyre pressure cold is 32psi front and rear and after 1 hour running on the highway pressures rise to 39psi front, 41psi rear, increase cold pressure to 35psi in the front, 37psi in the rear and repeat the
check. This is tedious and time consuming but it will give you a range of tyre pressures for different conditions, road surfaces load carrying capacity, variations between front and rear tyres and the best handling, fuel economy and tyre life possible. Hope this helps, cheers Peter. ps let me know how you go
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Reply By: Fabian - Saturday, Aug 04, 2001 at 00:00
Saturday, Aug 04, 2001 at 00:00
Having been thru 3 sets of various tyres, incl GrandTrek, the best pressure is between 34 and 36psi. I have run my tyres as low as 30 and as high as 40 on both offroad & highway conditions but 34-46 seems best as far as wear&tear are concerned. BTW, even onroad I have moved away Grandtrek as I find that when they are about halfworn, they slip around really badly. I have switched to Michelin 4x4 all 'round tyres and they are GREAT!
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