Tyre pressure

[Merlin5 13]

Hello chaps. 🙂

I pumped the tyres up yesterday to 32 front and 32 rear. My tyres are 205/55 R16 V 91. According to the manual that's the right pressure. 

But I've seen some places say unladen should be 35 front and 32 rear and another saying 33/33. Shall I stick with 32/32?

There's also nothing I can see about what pressure when carrying heavier loads. Would you say 38 all round for laden?

 

[FROSTYBALLS 3,516]

There should be a sticker/plate inside the driver's door opening on the B pillar whuch gives the tyre pressures including when loaded and at speed.

[Merlin5 13]

1 hour ago, FROSTYBALLS said:

There should be a sticker/plate inside the driver's door opening on the B pillar whuch gives the tyre pressures including when loaded and at speed.

Thanks, I looked at the other pillars and missed that one!

Yes, matches the manual, 32/32 under 99mph and 36/36 over 99mph.

Those pressures must be for unladen and laden because the little drawing shows the driver plus 5 passengers. And the only thing that changes it from 32 to 36 is speed.

 

[TonyHSD 921]

I found the best pressure for my car are 2.4 bar front and 2.3 Bar rear, same size as yours. Speed for me it’s not a thing as I will never get anywhere 99mph, I am usually cruising at 65/70mph. 👍

[Merlin5 13]

6 hours ago, TonyHSD said:

I found the best pressure for my car are 2.4 bar front and 2.3 Bar rear, same size as yours. Speed for me it’s not a thing as I will never get anywhere 99mph, I am usually cruising at 65/70mph. 👍

That works out 35/33 I think. I can try that. How do you know it's the best pressure, do you feel it in the ride, is it smoother?

[eygo 242]

i would measure your tread depth across the tyre width

to get a iew on how the tyre is wearing @ 32psi

if you find the centre has deeper tread then yes increase

the tyre pressure if its equal then leave it at toyota's pressures

on our 16 plate we run 35 / 35

[BigRedSwitch 13]

I used to run my 2015 Auris Hybrid at 36 psi but have now dropped it to 33psi as I found 36psi a bit too hard and uncomfortble.

[TonyHSD 921]

9 hours ago, Merlin5 said:

That works out 35/33 I think. I can try that. How do you know it's the best pressure, do you feel it in the ride, is it smoother?

Hi, yes my car comes originally with 215/45 R17 and pressures 2.3 front and 2.2 rear. After the wheels and tyres change (205/55 R16) I tried keeping same pressures as 17” but there where under inflated as the car was feeling too soft and sluggish, than I used a pressure table and I had see recommendation of 2.5/2.5 however that felt too hard and noisy, and so I was trying to adjust to find the suitable point that comes to using just 1 bar on top of the oem recommendation for 17” wheels. I am driving with probably one  of the softest tyres available on the market, also my car is a hybrid and has slightly more weight 1.4 tons then standard 1.6 engine. I also monitor the what was suggested by Eygo for tyre tread, watch for the border mark of dirt that accumulate At the tyre edges while driving on motorway, if it’s too much out tyre is under inflated if too much in toward the middle of the tread it’s over inflated. When you check pressure make sure the car hasn’t been in use for at least few hours and no direct sun or this will change pressures drastically. 👍