tellaziz

katabb is correct in everything he writes down. Load capacity of the tyre increases with more inflation. of course the loadindex of a tyre stays the same because it is just a maximum number at a certain pressure (35 psi for standard tyres, and 41 psi for XL). The load capacity is proportional to the pressure. Full stop.

Thais love to overinflate mainly cos they think it saves fuel.

H

Every vehicle manufacturer selects, tests, and approves various tires for each model, according to weight performance, size, and other criteria. Load and speed indexes are very important in tire selection and determine the appropriate air pressure

The load index is marked on the sidewall of a tire as an alphanumeric combination, consisting of two parts. This is referred to as the 'Service Description'. For example, for characters '100T', '100' would be the load index, which represents the load carrying capacity and 'T' would be the speed rating.

The load index is a numerical code that corresponds to the maximum weight a tire can support. A tire's load multiplied by 2 must cover the gross single axle load of your vehicle. A load index of 100 will support 800kg and no more. It doesn't matter how much air you put in the tire.

In answer to the OP's question:-

There are two recommended tire pressures for your vehicle: one for travel at maximal vehicle capacity weight or on the highway and one for travel at normal vehicle capacity weight. Tire pressure should be checked when the tires are cold. In other words, if your vehicle has been parked for at least two hours and has not been driven more than 1-3 miles since, you will get an accurate tire pressure reading. If, on the other hand, you stop at a highway rest area and your tires are not cold, add 0.3 bar to the recommended pressure (1 bar is 15psi near as dammit). Be sure to check the pressure again once the tires are cold. Never lower pressure if tires are not cold

If you doubt me, look at a website from a quality tire manufacturer. Say Dunlop or Michelin. Or, better still, just contact Isuzu customer service/technical department. All this will just confirm what is in the handbook.

I'm so, happy I've never had to drive a European car.

It seems to norm in Thailand to drastically over-inflate tyres - I can't find any sound reason for this - only folk-lore.

THe correct pressures for standard tyres are usually posted on the indie of the R/H front door.

you will fuc_k-up tyre wear, handling and all sorts of stuff by over-inflating and I can't find a single good reason for doing it.

at least 3 reasons for doing it, but none of them good

less fuel consumption

lighter steering

increased load capacity, IOW if tyres to low load index for load, at least max load index is achieved with TYRES recommended max pressure

Effects of drastic overinflation or any overinflation will make such a tiny difference on fuel consumption - if any you won't notice it.

Lighter steering is also unlikely except if your tyres were UNDER-inflated before. It will of course cause unusual wear on the centre of the tread.

Inflating your tries more doesn't increase load capacity, a certain amount of inflation makes the vehicle handle better when loaded (caravan owners take note!!). but significantly OVER inflating them will make the tyre more likely to give way - you may have noticed the large amount of overloaded pickups by the side of the road - many have simply burst a tire.

Moon River - as ever, what ARE you on about?

a TYRES max load capacity is obtained at max airpessure for this TYRE as indicated on sidewall of tyre. This aipressure is usually 30-40% higher than VEHICLES recommended tyre pressure

as you say overinflating makes wear in center of tyre, thus lighter steering due to less tyre surface contact/pressure/frction with road.

same reason for reduced fuel consumption, similar effect to installing smaller tyres width like most hybrids do to improve milage

a few hundred k km testdriving also tought us under- or overinflating 20% provides 5% change in fuel consumption

A tires load index is consistant throughout the range of inflation pressures it may be subjected to up to the maximum pressure rating of the tyre.It does not increase with pressure. The vehicle manufacturer advises the tire pressure range versus load as a recommendation. This is because they designed the vehicle.

Significant deviation from the manufacturers recommendations can seriously compromise the safety of the vehicle in terms of manoeverability and braking in circumstances unforseen by individuals who attempt changes on a trial and terror basis. If you're ever in doubt, staying within the manufacturers recommendations is always safest.

Buy a tire gauge and check tire pressures on a regular basis (say every week) especially if the inflation has been carried out by a third party (of any nationality).

If it stands for a while before it does it it could be water in the fuel. There is sometimes a drain plug on the bottom of the filter housing on some models. Open this and see if any water comes out first followed by diesel ? Also change the filter and check the already mentioned glow plugs and throw a tin of injector cleaner into a tank of fuel.

Thanks guys, sound advice. It has had quite a bit of work done on the engine, and has become one of those cars that 'you're never going to spend another cent/baht on'. But it generally goes well, so I will persevere with it.

The advice is good but you will probably have to syphon the fuel from the tank. Do this when there isn't much fuel in the tank as it's best to just dump the contaminated fuel. Changing all fuel filters is also the way to go. Hopefully this hasn't been going on for too long and caused long term damage to the injectors which means replacement. Try the injector cleaner first with new fuel. I wouldn't worry too much about the glow plugs at this point unless you are getting a warning light at engine start.

All fuel tanks get water in them. This water will sink to the bottom of the tank when the vehicle is still. The longer the vehicle stays still, the more water there will be. The fuel outlet from the tank is raised slightly from the bottom so that, at engine start, uncontaminated fuel goes to the fuel pump. When the vehicle moves, the fuel is agitated forming an emulsion with the water. As this emulsified fuel gets into the engine the water in the fuel tank is burnt off. If there's too much water, the fuel becomes too viscous which lowers the Cetane Index of the fuel entering the injectors and can cause them to become corroded and worn. The Cetane Index has a strong influence in determining the length of time from the start of fuel injection to the start of fuel injection in a diesel engine. A higher CI also improves the cold starting of diesel engines.

We have a few petrol stations around or should l say fuel stations and the words goes around don't use that one, !!! don't use that one etc !!! they have water in there tanks or they put water in there tanks. !!!

Believe it or not, Station fuel tanks have water in them which floats on the top of the fuel, lighter than fuel and stops gas rising. If the station lets the tank run low you could get water for your money.

Sorry I have to disagree. Diesel floats on water as none of it's chemical components have a density greater than 1, which is the density of water. So water will always sink to the bottom of a fuel tank at a filling station as it's a relatively stable environment. This water 'should' be regularly drained to prevent too much contamination of the fuel when it's pumped out.

You are correct that fuel blankets can be used but it's rare to find this at a normal filling station. The controlling regulations for filing stations are primarily related to; safety and environmental contamination. Fuel blankets which 'sit' on top of the fuel can be used to prevent fuel degredation and improve storage safety but inert gasses are normally used (typically Nitrogen). These blankets are mostly used for long term storage and for aircraft fuel where maintaining the Cetane Index of kerosene is very important.

Is there a Sportivo model that doesn't come with that goofy extra little side-mirror on the passenger side front panel?

And what is the drive/handling characteristics of the regular vs. Sportivo model Fortuners?

Also, keep in mind that Chevy has announced the updated Captiva, which should be in Thailand by early next year I believe.

Yeah. That mirror doesn't look so good. I now see these mirrors on cars and trucks which don't come with them stock. Maybe they're ugly but eeffective at eliminating the inside blindspot so you can see who is being knocked off their bike.

The regular Fortuners roll a little on bends and feel a little unstable if you're unlucky enough to need to brake hard. But most stock SUV's suffer from this slight disadvantage. It doesn't mean they're unsafe but it's noticeable. The Sportivo suspension modifications are reported to have overcome these characteristics but the ride comfort has been compromised. By how much I don't know as i've not driven one. Yet! Maybe the ride of the regular Fortuner will be more to my liking.

The Captiva (as is) had an update a few months ago. They don't appear to have done much other than change interior/exterior trims. But it does look better. I read in one press release a couple of weeks ago that Chevy were going to sell an SUV based on the Colorado chassis. Maybe this will get the Captiva name. I kind of thought that if it is based on this chassis it will be a bigger SUV which makes me think that something akin to the Trailblazer is on the horizon.

As you say it may be better to hang in there a while longer before jumping.

If you look in an earlier post, Engineer 139 one, and click on his down load's thats the new brochure Ive got so it's available. Best of luck.

If you want to know more phone Toyota BKK costomer service on 023861000

Thanks. Got the download now. Had trouble with it on Saturday when the files wouldn't open. So as you say there's definitely information out there. Trouble is getting my hands on it. The resolution of the tif files isn't good enough to gleen all the info so I've requested a brochure from Bangkok. Hope it arrives soon. Both dealers in Petchabun denied all knowledge of the new model. I guess it was a case of I'm not sure so the answers NO.

I noticed that the color scheme is still any color you like so long as it's white. Which is no surprise really as the last 2 models were the same. When you quoted 'there it is in black and white' I was kind of hoping there was more choice this time around as white's not my first choice for any car.

Still the chief reason I could be interested in the Sportivo is for the uprated suspension. When I first got the Sport Rider the ride was too soft and the steering wasn't tight. I fixed this with new dampers wheels/tires and a strut brace to tighten things up.

Earlier this year I had a test drive in a stock Fortuner 3.0 A/T and to be honest it drove pretty much like my Sport Rider used to. I expected more from a later model car. Fixing this isn't a problem as I've done it before but it is an added expendeture which I guess now would cost me an extra 100,000 baht, if not more. White could become appealing.

I notice that there Navi top model is 10,000bt more than the Sportivo so why the difference they both have sat/nav and I assumed the Sportivo had the tuned suspension

Didn't ask but before it had a better Hi/Fi set up. + S/Nav but now so has the Sportivo. It also had blue tooth. And yes the Sportivo 111 is as stated the same as Sportivo 11 just a few alteration's spoiler's ect. + those crappy cheap black side step's. I think the main difference as I see it is you can get a better discount/free add on's. On the Navi. Id still go for the Sportivo though better resale value.

To Fredob43

Apologies if I've posted this wrongly but it's my first time.

The new Fortuner Sportivo 111 has arrived !!!!!!

I'm looking to upgrade my ride and I've been hanging on to see where the Fortuna range was going regarding updates before I committed to buy something. My current ride is a Sport Rider which I've had for 6 years and have been very happy with it.

Seeing your post raised my interest but there's nothing on Toyota's website and I've been to 2 dealers who know nothing about a new Sportivo. Maybe your source has information which isn't available to most dealers. Did he/she give you a release date for this model? If so I would be most grateful if you could pass it on.

If it's not soon I'll just opt for the A/T Navi as the stock car seems to have what I'm looking for.

Thanks in advance