ACCIDENT: 4 killed, 4 hurt in vehicular accident on SCTEX in Pampanga

[lowslowbenz]

Baka kasi same case ng Bridestone issue before. If this happened in the US, sure lawsuit na kasi.

IIRC it was Firestone.

[renzo_d10]

I bet the Expedition was going fast... faster than what the old tires can handle.

People often forget that the tires has their own limits. Chances are, some speed junkies do not even know what tire ratings suggest or imply.. or worse.. they don't know that such exist.

[sachiel]

I bet the Expedition was going fast... faster than what the old tires can handle.

People often forget that the tires has their own limits. Chances are, some speed junkies do not even know what tire ratings suggest or imply.. or worse.. they don't know that such exist.

A valid point here but I doubt Americans know these tire ratings as well so they can win in this lawsuit and a new law regarding tires will be made. I'm thinking the rubber is brittle already because it's not being used all the time. Same as rubber shoes when you don't use it for a long time.

[Noel Salisipan]

Usually, ilang taon lang ba dapat ginagamit ang gulong GH?

[uls]

dami nila sa sasakyan

mabigat. baka over-inflated ang gulong, tapos mainit -- boom!

[ghosthunter]

dami nila sa sasakyan

mabigat. baka over-inflated ang gulong, tapos mainit -- boom!

If the tires were not old, they wouldn't blow out.

[uls]

If the tires were not old, they wouldn't blow out.

yup and i think yung sinabi ni niky baka underinflated. the sidewall could be rubbing on the pavement. heat buildup then boom!

[niky]

A tire blow-out can happen any time... even with new tires... if the pressure is out of spec and the tire heats up too much (travelling very fast for a long time on underinflated tires).

And, as we've seen with the Fortuner accident on the Skyway... when you have a blowout in a tall SUV... a roll-over is almost inevitable.

-

In other words... always check your tires... buckle up... and don't drive too fast if you're in a car with a high center of gravity.

-

Over versus Under... a blowout is almost always a result of underinflation. Underinflation causes heat due to friction in the sidewall and extra rolling resistance. This heat raises the pressure, causing a blowout.

A tire that is slightly overinflated does not heat up as much as a tire that is underinflated. Thus, it is at high pressure, but low temperature... the risk for a blowout is actually much less than with "normal" pressures. Which is what caused the Firestone scandal before... because the "normal" door pressures on the 1990's Explorers were TOO LOW for the tire spec.

Scientific testing and safety testing bear this out... NEVER underinflate on the highway... and sometimes, you need to overinflate to ensure safety.

[renzo_d10]

A tire blow-out can happen any time... even with new tires... if the pressure is out of spec and the tire heats up too much (travelling very fast for a long time on underinflated tires).

And, as we've seen with the Fortuner accident on the Skyway... when you have a blowout in a tall SUV... a roll-over is almost inevitable.

-

In other words... always check your tires... buckle up... and don't drive too fast if you're in a car with a high center of gravity.

-

Over versus Under... a blowout is almost always a result of underinflation. Underinflation causes heat due to friction in the sidewall and extra rolling resistance. This heat raises the pressure, causing a blowout.

A tire that is slightly overinflated does not heat up as much as a tire that is underinflated. Thus, it is at high pressure, but low temperature... the risk for a blowout is actually much less than with "normal" pressures. Which is what caused the Firestone scandal before... because the "normal" door pressures on the 1990's Explorers were TOO LOW for the tire spec.

Scientific testing and safety testing bear this out... NEVER underinflate on the highway... and sometimes, you need to overinflate to ensure safety.

So Niky, if ever I`ll be going on a long drive.. and for example the suggested TP is 30psi what is the max pressure I can inflate the tires with without compromising safety? Plus 2psi lang ba = 32psi ?

[yapoy86]

puro bata naman ata ang sakay nung expy eh... sa tingin ko maluwag pa sila dyan... mahirap lang talaga sa gulong ng SUV pag sumabog biglang bagsak ang sasakyan.. malamang nagulat yung driver at biglang apak din sa preno kaya ayun.. gulong agad

[niky]

So Niky, if ever I`ll be going on a long drive.. and for example the suggested TP is 30psi what is the max pressure I can inflate the tires with without compromising safety? Plus 2psi lang ba = 32psi ?

Door stickers are based on what the manufacturer wants. In the old days, fhey were low because manufacturers were biased towards ride comfort. But studies later proved that these pressures may have been too low... Again, Firestone scandal. Ford's door stickers were 28 psi on the Explorer... The Firestones were not safe below 33.

Door stickers should be your minimum. For a full load, the maximum sidewall pressure indicates the pressure at which loading capacity no longer increases. In other words, no benefits in going beyond this point, unless you're a hypermiling geek.

I usually inflate to full load door sticker pressure or slightly below, then adjust for comfort or adjust higher if it's still comfortable. Mind you, many modern cars have door stickers recommending 33, 35 or even over 40 psi, which is beyond max sidewall of some older tires... But again, max sidewall is not bursting pressure.

[vinj]

*OTEP: Tell Ki na dapat habang infant pa yung pamangkin mo, isanay na sa childseat. That's the problem i had with my hyperactive second child.

A tire blow-out can happen any time... even with new tires... if the pressure is out of spec and the tire heats up too much (travelling very fast for a long time on underinflated tires).

And, as we've seen with the Fortuner accident on the Skyway... when you have a blowout in a tall SUV... a roll-over is almost inevitable.

-

In other words... always check your tires... buckle up... and don't drive too fast if you're in a car with a high center of gravity.

-

Over versus Under... a blowout is almost always a result of underinflation. Underinflation causes heat due to friction in the sidewall and extra rolling resistance. This heat raises the pressure, causing a blowout.

A tire that is slightly overinflated does not heat up as much as a tire that is underinflated. Thus, it is at high pressure, but low temperature... the risk for a blowout is actually much less than with "normal" pressures. Which is what caused the Firestone scandal before... because the "normal" door pressures on the 1990's Explorers were TOO LOW for the tire spec.

Scientific testing and safety testing bear this out... NEVER underinflate on the highway... and sometimes, you need to overinflate to ensure safety.

And yet, many people continue to take their MPVs, AUVs and SUVs to well over 180-200kph. You'll always hear them say "Very stable and kaya pa" with a matching pic of the speedometer. Obviously they have not encountered a tire blowout or had to do an emergency brake and maneuver at high speed in both wet and dry conditions.

Most also tend to underinflate their tires, especially in big cars, as they want a smooth ride.

Me too, almost everyone especially my children, pwera lang sa byenan, hayaan mo sila

Hehe... this made my morning. My byenan almost had a heart attack the first time she rode with me on a two lane highway. She never encountered riding in a car accelerating to redline all her life.

[uls]

considering what niky said... tires could be underinflated, tapos madami sakay, bagsak ang gulong, sidewall contact pavement tapos mainit pa... sabog gulong

[Chikselog]

Ako pang long drives and full pax + bags 33-35psi ang tires ko. Okay lang ba to?

[onewaytrip]

Ako pang long drives and full pax + bags 33-35psi ang tires ko. Okay lang ba to?

ok na ok ito sa ating mga sedan. gawain ko rin ito.

[uls]

comprehensive investigation?

here in the Philippines?

[OTEP]

It was running bling bling rims. Wonder what tires were on them. Not blaming, just wondering. Rims was also shattered. Not sure if they are JWL T standard. The stock rims arent also so I guess its moot to speculate. But stock rims are designed to conform to stricter standards than aftermarket ones especially in our region.

[jick.cejoco]

inability of our highway patrol group to do traffic accidents is a shame. for sure we know, most of them are "kotong" experts, are there at least a few who just graduated from the course who might still remember how to do it? so much for the remote possibility of a qualified report, how about the four survivors' testimony as to the last few seconds before impact?

[JohnM]

Worse kung bling rims running on car tires not rated for the weight of the vehicle. Eye opener sa akin when we went to a big tire shop in Libis looking for Revo tires and they wouldn't sell us the car tires with the tread pattern we wanted. May weight ratings din pala ang tires so we got the 8-ply. Mas mahal nga lang pero more peace of mind.

[lazyfoot]

Tire blowouts with SUVs is really such a beast. I've had blowouts with both my civic and Pajero. In the civic, just keep neutral and coast it till it's slow enough,don't apply brake pressure. In the Pajero, you do the same but the whole thing will keep fighting you till the end. It will want to pull you too the side but if you put too much counterpressure in the steering wheel and it will snap quickly to the opposite direction. I guess that's the same case with the expedition.