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  Reply # 1219371 21-Jan-2015 18:21
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What was the front tyre pressure?







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  Reply # 1219374 21-Jan-2015 18:24
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Front was around 31psi, rear as I said 26-28psi. I usually keep the front at 32 (recommended) to 34.




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  Reply # 1219675 22-Jan-2015 07:22
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timmmay: Front was around 31psi, rear as I said 26-28psi. I usually keep the front at 32 (recommended) to 34.


Got your back here bro.

I had some new tyres fitted a few months back, they put them up to 40psi. I went back to them and told them the ride was too hard so they dropped it down to 36, which is where I usually have them.

I immediately felt the difference.

You also have to remember that the tyre pressure recommended by the car manufacturer is for a combination of comfort, economy grip/safety and tyre wear.

I have mind higher to optimise rolling resistance and feel on the road rather than comfort, to me a car is for getting from A-B as fast as possible/legal



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  Reply # 1219681 22-Jan-2015 07:28
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The higher the tyre pressure the less tyre is on the road. Sure you may use slightly less petrol, but your stopping power is significantly reduced. Interesting graphic below.

Click to see full size




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  Reply # 1219735 22-Jan-2015 08:41
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28psi is a valid setting for some models of Corolla although Tonys should have checked the sticker by the drivers door. I'd be surprised if 40psi was a recommended pressure outside race tracks.



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  Reply # 1219755 22-Jan-2015 08:55
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My car door's sticker has a huge matrix showing the various tyres sizes which the model can be fitted with, the number of passengers and luggage in the car, and then a corresponding recommended pressure.

Basically what I'm saying is that only the owner/driver of the car will know how they use the vehicle, so I don't think it's reasonable to expect the tyre company to get it 100% right each time as there isn't one 'best' pressure to use. It depends.



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  Reply # 1219759 22-Jan-2015 09:00
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The recommended pressure is 32, the sticker on the car says 32, they went to 26-28. Handling was dangerous.




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  Reply # 1219781 22-Jan-2015 09:09
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timmmay: The recommended pressure is 32, the sticker on the car says 32, they went to 26-28. Handling was dangerous.


You don't know what pressure was set as you didn't check with a known gauge.

The variability in readings from service station air pumps could easily be more than 4psi.



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  Reply # 1219783 22-Jan-2015 09:10
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Bung:
timmmay: The recommended pressure is 32, the sticker on the car says 32, they went to 26-28. Handling was dangerous.


You don't know what pressure was set as you didn't check with a known gauge.

The variability in readings from service station air pumps could easily be more than 4psi.


Sure, I don't know exactly. I'd be surprised if a 4psi difference made the car handle that badly, so it was possibly much lower.




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