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Just wondering what tyre pressures folks are running their tyres at?

Only ask as see that there are two options - 2 & 3 on the tyre pressure sticker - of: "Tyre pressure for partial load" and: "...comfort pressure for partial load."

The manual states that option 3 is "In some vehicles" and, when reading the explanation about said "Comfort tyre pressure," it mentions that this setting: "...should make driving extra comfortable. Fuel consumption may increase when driving with comfort tyre pressure."

Can't seem to find an explanation of what "some vehicles" are defined as, however!

Or it could just be as simple as if it's on the sticker in in the car, then either pressure is suitable?!! :)
 

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I have the Tyre Pressure Monitoring System (TPMS) on my SEL, and there are 3 options in the 'setup', "part load-comfort", "part load-normal" and "full load", with suggested pressures for each option.
I tend to use 'normal' most of the time as it's just me in the car, or 'full load' when required.

Steve
 

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Registered to this forum to react here.
Live and was born in Holland.
Once got hold of the official formula to calculate pressure for a sertain load and went running with it.
Now call myself "Dutch Pigheaded self-declared tyrepressure-specialist".
Will not introduce myself in a seperate topic, no use I think, but if needed , tell me and I will do so .

If you can give 100% acurate determined ( never possible) , loads on seperate tyres, speed you wont go over for even a second, maximum load of tyre, reference-pressure of tyre ( will explain later what this is) and speedcode of tyre, I am able to calculate a save lowest pressure , wich wont give damage to tyre by overheating , and wich then is the lowest pressure with maximum comfort and no damage to tyre.

Now these data are never able to be determined 100% acurate , so you always have to use a reserve.

What the car makers give is mostly for comfort setting, using axle weights determined for 3 persons and a little load, up to 160km/99m/h.
Then for full load before 2000 they used maximum permissable axle loads asuming that if you go over that you are responsible.
After 2000 this responcibility chanched by law so now they give mostly higher pressure .

but this all means that if you are alone in the car with practically no extra load, you can even use lower pressure then part load comfort
This only for the savety of the tyres, for fuel saving higher is better.

I nowadays use my own formula that is even saver then the European one, used since decades , from the beginning of radial tyres about 1970, and to wich America stept over to as late as 2006 , but only for normal car tyres in Standard load and XL/reinforced/Extraload.

Greatings and nice Crismas-hollydays .
Peter
 

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Mine are running at 38 front and rear.
 

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SlimPollack said:
Mine are running at 38 front and rear.
Which is 2.62 bar, which is pretty much what I'm running in 'part load-normal'. ;)

Steve
 
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