winter tire pressure?
#1
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winter tire pressure?
I put on the snow boots last weekend, (toyo garrit ht 17), wondering if there is any suggestion on best tire pressure for the snow tires.
BTW, just tried out the snow tire yesterday morning, it was freezing in the morning and black ice all over the place in the western tip of Mtl island. The DSC light comes on a few corners with cold hard surface. But for one icy corner, I can see the glassy reflection on the road surface, I could not even make a sharp 90' turn after a stop sign, a slow turn about >5 km, went over on coming traffic, thank god the kid right in front of my face was driving slow on ice and avoided the head on. The rear tugged in fine but the front could not get any grip. Be careful out there with the 8.
BTW, just tried out the snow tire yesterday morning, it was freezing in the morning and black ice all over the place in the western tip of Mtl island. The DSC light comes on a few corners with cold hard surface. But for one icy corner, I can see the glassy reflection on the road surface, I could not even make a sharp 90' turn after a stop sign, a slow turn about >5 km, went over on coming traffic, thank god the kid right in front of my face was driving slow on ice and avoided the head on. The rear tugged in fine but the front could not get any grip. Be careful out there with the 8.
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Snow tires should be inflated to 36 PSI cold. It's in the RX-8 Owner's Manual and I've confirmed this with the Tire Rack for my Dunlop Winter Sport M3s.
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Originally Posted by Mic Jagger
Gezzz ... I read the Manual and it said 32 PSI... not for winter tires .. just tires.. so what gives ? Which one is it ?
"Use snow tires on all four wheels.
Don’t go faster than 120 km/h (75 mph).
Inflate snow tires 30 kPa (0.3 kgf/cm2,
4.3 psi) more than recommended on the
tire pressure label (driver’s door), but
never more than the maximum cold-tire
pressure shown on the tires."
Crystal clear now
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Originally Posted by Bellef
I also have garrit's and found that the rear wheels spin easily even with DSC on (just a little) but the summer treads did not. What's with that?
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Originally Posted by rx8cited
Gezzz, which part you not understand? 32 for summer tires, 36 for winter tires. Here, I'll quote from the from page 4-9 of the US Owner's Manual for yah:
"Use snow tires on all four wheels.
Don’t go faster than 120 km/h (75 mph).
Inflate snow tires 30 kPa (0.3 kgf/cm2,
4.3 psi) more than recommended on the
tire pressure label (driver’s door), but
never more than the maximum cold-tire
pressure shown on the tires."
Crystal clear now
.
"Use snow tires on all four wheels.
Don’t go faster than 120 km/h (75 mph).
Inflate snow tires 30 kPa (0.3 kgf/cm2,
4.3 psi) more than recommended on the
tire pressure label (driver’s door), but
never more than the maximum cold-tire
pressure shown on the tires."
Crystal clear now
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#8
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Yes, same here, wheel spin with the Toyo even gently release the clutch on dry road. No problem with OEM summer tire.
Wow, I thought lower tire pressure gives better grip. I might probably keep the tire pressure between 30 -32.
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also, about pressure. Remember your chemistry gas laws, as temperature increases, so does pressure. So in the summer, tires are inflated to 32psi, and probably increase to a higher running pressure (say hypothetically 37psi) well the snow tires dont really get as warm as the summers can, so to compensate they start at a higher pressure.
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Reading the manual is always a good idea.
Some guys are even saying to adjust pressure for the smaller rims/tires. Is anyone doing this or is it not much of a concern. My tire guy didnt mention it, only to follow what the manual says for inflation.
Some guys are even saying to adjust pressure for the smaller rims/tires. Is anyone doing this or is it not much of a concern. My tire guy didnt mention it, only to follow what the manual says for inflation.
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