Piyke:
Next, I activated the tyre sensors and got the readings below.

The correct pressures for this car are:
Front - 30psi
Rear - 35psi

your friend is suicidal , I like your scan tool

Piyke:
The vehicle is a 2008 C class and he had just taken on a 12hr trip (6hr each way).

I hooked up my scanner, entered the TPMS service menu and pulled the sensor ID's from the TPMS ECU. The only abnormal thing at this point was a missing ID for the left rear tyre sensor.

kingreign:

Over time, when you drive, due to heat and colliding forces of the air molecules, the air pressure in the tyres increase. When you've parked and cooled sufficiently, the real cold PSI shows, usually in morning time.

GAZZUZZ:


your friend is suicidal , I like your scan tool

veeshock:

But the temp reading looks normal.

thonyman:
Oga Pyke,
Pls I need to reach you on the phone, please give me your contact.

Piyke:
Next, I activated the tyre sensors and got the readings below.

The correct pressures for this car are:
Front - 30psi
Rear - 35psi

Presegs:


Nice one.

This is my kind of scanner made by Autel! !!

Piyke:
Imagine having almost 56psi in a tyre that should have 35psi. I can't imagine the number of accidents that are caused by incorrect tyre pressures in this country.

Do you know your tyre pressures?

Piyke:
Next, I activated the tyre sensors and got the readings below.

The correct pressures for this car are:
Front - 30psi
Rear - 35psi

dgitrader:


Vulcanizers Ooooh.

I once asked a roadside vocah what PSI my tyre needed, he said '50' like a boss, I was wowed! Asked why, he smiled and pointed to a spot in the tyre where it was written ''51psi max''. I simply told him to use 40psi and ran for my dear life.

@gazzuzz
If 35psi is recommended as in most cases, why does the tire look a bit visually deflated where strictly applied? Especially with not too new tires?

timifakay:


Calm down





But do you know how to use it?
When you use it, do you know how to interpret the results?

Abeg, Nobody should quote me, I'm not around

dgitrader:


Vulcanizers Ooooh.

I once asked a roadside vocah what PSI my tyre needed, he said '50' like a boss, I was wowed! Asked why, he smiled and pointed to a spot in the tyre where it was written ''51psi max''. I simply told him to use 40psi and ran for my dear life.

@gazzuzz
If 35psi is recommended as in most cases, why does the tire look a bit visually deflated where strictly applied? Especially with not too new tires?

timifakay:


Calm down





But do you know how to use it?
When you use it, do you know how to interpret the results?

Abeg, Nobody should quote me, I'm not around

kingreign:

Over time, when you drive, due to heat and colliding forces of the air molecules, the air pressure in the tyres increase. When you've parked and cooled sufficiently, the real cold PSI shows, usually in morning time.

dgitrader:


Vulcanizers Ooooh.

I once asked a roadside vocah what PSI my tyre needed, he said '50' like a boss, I was wowed! Asked why, he smiled and pointed to a spot in the tyre where it was written ''51psi max''. I simply told him to use 40psi and ran for my dear life.

@gazzuzz
If 35psi is recommended as in most cases, why does the tire look a bit visually deflated where strictly applied? Especially with not too new tires?

Presegs:


Google.com will answer your dumb questions/assumptions dear OBD I I 8,500 naira worth scanner owner! !!

timifakay:


Sorry sir

9icetoo:
[/b]
That's how they are supposed to look. We got used to seeing over inflated tyres and subconsciously assume that's how tyres should look.
+3 to +5 psi isn't bad. What manufacturers give are just recommendations in an unloaded car.
Pressures when loaded are sometimes also stated.
Now for our uneven roads, adding 3 to 5 psi should give your side walls some added rigidity and prevent undue damage from bumps. However, never exceed the maximum recommended stated cold pressure from the tyre manufacturer.

adanny01:


To add to this, most of our vulcanizers carry a pressure gauge that is uncalibrated, faulty or they simply don't know how to properly read the gauge.

Most pen tire pressure gauge has 2 sides of readings one side is either Psi or lb/in² which are both same and the other side is in kg/cm².

30Psi=30lb/in²q=2.1kg/cm²

So imaging this, how many volcanizers know which is correct? If you tell a volcanizer to pump your tire to 40, how will you know if he pumped 40Psi or 4.0kg/cm².

If he did 40Psi you are safe.
If he did 4.0kg/cm²=57Psi
If he did 3.0kg/cm²=43Psi

Besides, these readings are so small and require good training to avoid reading in error, especially parallax error (O'level physics/chemistry).

Who has seen the coincidence with what Piyke has seen?

Some vulcanizers are actually using the wrong side of their gauge. Also, no vulcanizer will pump less than 40Psi if you didn't limit him to 35Psi. What they go with is the maximum tire pressure written on the tire against the car specific tire pressure. I have tried to enlighten a good number of them but they all stick to their wrong training.

AutoElectNG:
There is a scientific relationship between tire pressure and speed and tire pressure and load carrying capacity.

The tire pressure recommended by the manufacturer is for normal cruising speeds, if you max out the speedo, the recommended tire pressure is no longer adequate.

There is a formula for it: +6miles/h =Increase your pressure by 1.5psi but never exceed the maximum pressure rating on the tire sidewall

The tire pressure recommended by the manufacturer does not account for overloading and maxing out the speedo at the same time

There is a formula for it: +6miles/h = -5% load capacity

So let's be properly guided

Piyke:
Imagine having almost 56psi in a tyre that should have 35psi. I can't imagine the number of accidents that are caused by incorrect tyre pressures in this country.

Do you know your tyre pressures?

Drcentrist:
Piyke what do you pump a Toyota corolla written 30psi as recommended but tyre can take 44psi,I normally pump to 35psi,what's your suggestion?

Piyke:


This seeming deflation is very important to maintain the ideal 'contact patch' of the tyre with the road. Overinflation reduces the size of the patch and lengthens the distance over which braking occurs. It also affects handling and traction.

dgitrader:
Most times I see cars with new tyres looking like the highlighted, I feel for the owners. But when u use the correct psi, yours appears underinflated, that's why I always use +5, And regularly check the pressure bi-weekly to make sure it doesn't decline below 35psi.