Tires pressure.

Chan Chee Hoe

Hi Friends,good morning...Nissan told us to put 35 psi of pressure to our tires,last week,i tried 40 psi,i felt the higher pressure 'suited' the car better,sharper handling,less tire noise & better fuel economy,only disadvantage is a more choppy ride...so has anyone do the same.?Thanks.

PapoZalsa

On the "jam" of the doors is a stickers that indicates the recommend PSI by the company of the car.

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Trips

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6spd

You can put whatever you want up to the max pressure. Best way to do it in my mind is to play around with different PSI until you find one that feels best. For instance, on my old RSX I liked to run about 31 PSI because anything higher and the tires would lose traction to easily and it felt better suited to my suspension setup. On the Z Ive found that, for me, the best pressure is around 35-36PSI, anything higher, like around 40, and the rear breaks loose to easily, but the handling feels more stable.

Personal preference really.

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Chan Chee Hoe

I know that,but i tried 40 PSI & feels better,i wonder any people here pumped 40 PSI to their cars.?

NXTAZEE

When I picked up the car it had 45 psi and it was a very rough ride. I have 35 now which gives good traction as well as a smother ride. I may try a little less to see how that feels.

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JB1

When I picked up the car the dealer didn't adjust the pressure from when it was shipped from Japan, so it was at about 45 psi. I didn't like it one bit, a bouncy ride. Adjusting the pressure to factory spec made a world of difference, more comfortable and better handling so I'd say stick with the factory specs.

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import111

I run 36.5 front and 35 rear in the Z. Handles great. STi was happier with 37.5 front and 35 rear, but it was more front heavy than the Z.

Island_370

Better economy is coming at a sacrifice. Potentially higher tire wear (not using the tire surface evenly) and potentially of braking performance--the easy two sacrifices.

I would rather get 2 fewer mpg then have to buy a front bumper because my braking distance is increased in an emergency situation. Do a search on the risks of "hypermiling", most have a section on higher tire pressures.

You can do what you want and likely you will never need to use the brakes at their max on the street. But to me, the risk ain't worth it.

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6spd

^good points

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StLRedrider

i usually just keep adding air till i hear the tire expanding. that lets me know its full

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tonybui

sorry to jack your thread, but my tire pressure is at 35 and the tire pressure warning is on saying "check tire pressure" ?? wtf

Trips

it normally takes a few miles to recalibrate.

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tonybui

its on for a couple days now, i see it everytime i turn on the car !!

Trips

make sure the pressure is at the recommended 35 psi, and if thats the case you might have a bad sensor

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