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Old 04-29-2003, 01:23 AM   #1
OnTheGas
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Question 500 Miles of Breaking In Your Tires?

In the Tire Rack's Wheel & Tire Owner's Manual on page 13, it says:
Quote:
Tires are comprised of many layers of rubber, steel and fabric.
Due to these different components, your new tires require a "break-in" period to ensure that they deliver their normal ride quality and maximum performance.

As tires are cured, a "release lubricant" is applied to prevent them from sticking in their mold. Some of the lubricant stays on the surface of your tires, reducing traction until it is worn away.
Five hundred miles of easy acceleration, cornering and braking will allow the mold release lubricant to wear off, allowing the other tire components to begin working together.
Now I don't care about the "release lubricant" making the tires initially slimy or slippery... My butt can tell me how much grip I have to play with and I can adjust my driving appropriately.

What concerns me is the implication that my tires will come together better if I take it easy on them for 500 miles.

Is there any truth to that?

Or am I mis-reading the manual?

Don't know if this makes any difference, but the tires I'm getting are Kumho Ecsta MX 225/50/16 on stock wheels...
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Old 04-29-2003, 08:31 AM   #2
Luke@tirerack
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You are not misreading the manual ... I have S-03's on my car and they difference between brand new and after 700 miles is a vastly different level of traction
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Old 04-29-2003, 11:44 AM   #3
kenchan
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even 10miles and 50miles was a huge difference on mine...

10miles took a expressway ramp at the speed i usually take it
and the rear spun out and i was doing a doridori powerslide with
zero counter.
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Old 04-29-2003, 03:32 PM   #4
OnTheGas
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Question OK, But...

But once the mold lubricant is worn off, do I need to take it easy on new tires for 500 miles?

The option would be drive the hell out of the tires to wear off the lubricant, and then continue to drive the tires as if they were strapped onto a wrx w/an enthusiast behind the wheel...
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Old 04-29-2003, 05:20 PM   #5
kenchan
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i really dont think so. i couldn't tell the difference on the streets
after the lub wore off. just becareful the first couple of
fast turns as it is very slippery.

i also bought it end of Dec so by the time i had more than 1,000
miles, it was spring so it gripped better anyway...
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Old 04-30-2003, 05:21 PM   #6
tcs007
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That's the best part about new tires is "burning off" the release compound. I like finding a nice empty parking lot to do the aforementioned "burning off".
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Old 04-30-2003, 06:47 PM   #7
DoinkMobb
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When I got my tires mounted, they seemed a little slippery and kinda loud. They also followed grooves really bad for the first few weeks. They seemed to have calmed down after driving on them for a while.
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Old 05-01-2003, 09:18 PM   #8
SubbyRS
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Quote:
They also followed grooves really bad for the first few weeks.
Did you get a wheel alignment done as well? if not, sounds to me like your toe was slightly out of spec & now your new tyres have "bedded in" to your pre-existing wheel alignment specs.
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Old 05-02-2003, 01:49 PM   #9
ChrisDP
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I know of a very skilled open track instructor that went off in a big way due to fresh Falkens being greasier than expected. The mold-release goop can make the tires lose grip very suddenly.
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