Saintor

Airbags or seat belts are granted. That was so pre-1990.

1992: I had to buy a car with ABS. I insisted to pay $600 to get it as an option on my 1992 Mazda MX-3 GS 1.8 V6.

2005: it was standard since 2003, but I had to get ESP on my 3-series. See my avatar for explanation.

** Fast forward 2017 ** : now I will NEVER own a car without tire pressure actual read-out.

Tonight 5PM returning from work. BAM! Stopping 5 minutes later, I saw some pigeon shit on the side so I thought that a bird hit my car. Three hours later, my car tells me that I have less than 10 psi in the rear right tire, although visually there was nothing wrong.. So at home, I swapped it with one of my winter wheels. Found and removed a large piece of steel.

I wished that I had this luck in 2009. After 10 minutes on an urban highway, my BMW with no-RFT gave me a "yellow" tire signal. Didn't feel or look abnormal so I took the risk of getting to my work, 20 minutes more. A so sorry outcome, with no place to go, no curb. It cost me a tire and a few hundreds more. Not counting the multi-hours aggravation.

I would have never done it with an actual read-out or RFT (which were unbearable at that time)... *Kudos to Acura for having made TPMS actual read-out standard.*

Sarlacc

So, you're blaming BMW because you were a dumbass? Yeah, not surprised here.

JS + XES

iTrader: (1)

I don't know what I just read.

justnspace

iTrader: (1)

just say no to alcohol

Chief F1 Fan

English his second language maybe?

CCColtsicehockey

I tried to be positive and think he actually finally created a thread that was a useful conversation and contribution to the forum. I should have known better.

TylerT

iTrader: (1)

Ok.....

thoiboi

Whenever I see lights on my dash, I just ignore them as well.

"Check Engine Light"? Pop hood, checked engine.. It's still there!

And away I go... This has been my go-to/tried and true/proven method of maintaining my cars and without fail, every time I see a CEL, the engine is still there..

I mean, why the fuck do they even bother having a stupid light like that? Like, where the fuck do they think the engine is going to go without the rest of the car?

Damn automotive engineers..

crazyasiantl

iTrader: (7)

ESP.. I use it 95% of the time and twice on Sunday's

CLtotheTL32

iTrader: (3)

NBP04TL4ME

Like many of you I have multiple problems with the OP's post, but the part I am really having trouble with is above. You tire is 2/3rds+ low on air and "visually there was nothing wrong."
You don't notice that you car is driving differently, presumably pulling to the right like no tomorrow.

Suppose it's possible, but I just don't get it..................

TacoBello

Whenever I have a dash light come on, I just put a piece of black electrical tape on the dash to cover it. No more light!

horseshoez

iTrader: (2)

Safety: I will never own a car without...

An anti-Saintor device.

Sarlacc

Its also JS's yet I always understand him just fine.

thisaznboi88

iTrader: (7)

Google tranlstor?

imj0257

iTrader: (1)

justnspace

iTrader: (1)

i totally think he's drinking and posting. 9PM on the dot. the other weird thread was in the evening around the same time.
almost reminds me of Professor and how he would write a tangent about his dog, shotgun blasts, and a oriental rug

00TL-P3.2

Guys. TLX = Acura superior tires. 10PSI will still get you to 90% of the speed of light.

cu2wagon

If you're moving at speed, there is a chance that centrifugal force will keep the tire in the proper round shape and not in that flat on one side shape as shown above.

TacoBello

So what you're saying is the faster your drive on a flat tire, the better!

I'm guessing that's why Saintor never noticed the flat. The TLX looks fast so he never noticed the low air. It all makes sense.

ttribe

So, this went sideways quickly.

I have to say, though, that I do prefer the tire display with actual pressure from my 3G TL over the one in my BMW...

00TL-P3.2

I have actual readouts on the F150 & just go/no-go on the Flex. Definitely prefer it if available.

juniorbean

iTrader: (5)

They all take the bait so easily (and quickly)

Saintor

Yeap, that's experience talking , unlike some of the usual few retards above.

TPMS being mandatory, I don't see why they don't all have actual readouts. Extremely useful.

cu2wagon

Because the (at least in the US) Federal mandate for tire pressure monitoring didn't specify (at least initially, I really don't know if it's changed) that it needed to be an individual tire pressure monitor; only that the system monitor for a low pressure condition.

So it was up to the manufacturer to decide how they implement. Putting one dummy light was enough to satisfy the requirement and could be done cheaper and easier than putting in individual measurements with a display.

Do you see now?

Saintor

Most modern cars have a LCD display yet many car companies chose not to show actual read-outs. So no, wrong answer.

NBP04TL4ME

It always comes down to cost. Can't say for sure, but am guessing exact reading is more costly than an idiot light / notification.

horseshoez

iTrader: (2)

Yup, cost is a big factor as is the technique for determining whether there is an issue with one or more tires. My wife's former 2012 VW GTI did not have individual tire sensors, instead it used the ABS system to determine if a tire was under inflated (or over inflated) using wheel RPM deltas to make said determination. With such a system, individual tire pressures are impossible.

thoiboi

How the hell was that the "wrong answer"? It always comes down to costs... Did you think an LCD display is all it takes to display a number? How about the TPMS sending/receiving units that that transmit the actual numbers to the ECU which would then display that info onto the MID.

Cul0's response was totally within reason when it comes to laws. Doing just the bare minimum to satisfy laws is the American way

00TL-P3.2

This was my response as well. Different TPMS systems, some of which have no capability to read pressure, just know if a wheel is turning at a different speed to the rest.
What if all 4 are low by the same amount & no single wheels is over/undersped?

horseshoez

iTrader: (2)

The likelihood of four tires dropping from say, 36 psi to say 20 psi, is so very remote as to make it a virtual impossibility. That said, the VW system was sensitive enough to detect that, wheel speed deltas is a primary tool, but wheel RPMs as a group versus the expected wheel RPM at a given speed from the speedometer sensor also triggers the system to report an inflation issue.

thoiboi

What if say, the weather dropped from 110 F to 45 over night

horseshoez

iTrader: (2)

Tom Brady didn't deflate the footballs.

From 110°F to 45°F wouldn't be enough to trigger the system; it would only amount to a delta of a few pounds.

cu2wagon

Assuming an isometric system (*fairly* true for a tire), the change in pressure as a factor of temperature is given by P2 = P1(T2/T1).

So starting at, say 35 psi at 110F and going to 45F would result in a pressure of 35*(45/110) = 14 psi.

That should trigger even binary TPMS systems (assuming it's looking for a threshold value and not a delta between the individual tires).

Source: ideal gas law.

TylerT

iTrader: (1)

thoiboi

Never question an Asian when it comes to maff or science

horseshoez

iTrader: (2)

Hmmm, something doesn't seem correct with that math. The general rule of thumb for tires is for every 10°F drop in temperature there is a corresponding 1 psi drop in the tire; all else being equal. So, in the above example of a 65°F drop (110°F to 45°F), a tire inflated to 36 psi would then measure 29.5 psi.

thoiboi

How do you reckon?

thoiboi

14.3181818181?

1killercls

head injuries are a motherfucker.