Runflats question
Thread Starter
4th Gear
Joined: Jul 2008
Posts: 4
Likes: 0
From: Rockville MD
Runflats question
Awful subject for my first post, came out to my car after work today to discover that my right rear Z51 Supercar went flat. Was too late at night to get it to the dealer so drove it 3mi home. 12mi drive to the dealer in the morning.
Question: Is it a problem that it will sit overnight or will the runflat not be troubled by that? Never had a runflat go flat before and can't find the answer on Google. If it's relevant the puncture is from a screw embedded at the intersection of tread in the middle of the tire, there's no sidewall issue.
Thanks in advance!
Nimzowitsch
Question: Is it a problem that it will sit overnight or will the runflat not be troubled by that? Never had a runflat go flat before and can't find the answer on Google. If it's relevant the puncture is from a screw embedded at the intersection of tread in the middle of the tire, there's no sidewall issue.
Thanks in advance!
Nimzowitsch
Team Owner
Joined: Jun 2005
Posts: 46,295
Likes: 2,596
From: Northern, VA
St. Jude Donor '15
"In honor of jpee"
that's a good question. if you can, add air to the tire. it can't hurt.
by dealer I presume you mean Goodyear dealer. most car dealerships won't/can't deal with tire repairs as well as a Goodyear dealer. call tire places first to find out if they handle runflat. or it might be in the tire booklet that came with the car.
by dealer I presume you mean Goodyear dealer. most car dealerships won't/can't deal with tire repairs as well as a Goodyear dealer. call tire places first to find out if they handle runflat. or it might be in the tire booklet that came with the car.
Safety Car
Joined: Oct 2007
Posts: 4,269
Likes: 4
From: Mililani HI
Nimo, not a problem you can leave it and then in limp mode drive to your dealership. Being in the center of the tire it can be repaired, a plug and patch is recommended.
However I plugged my tire and that was about 8K miles ago no lost of air and it has withstood speeds of 150, 155 and 160 (closed roadway).
However I plugged my tire and that was about 8K miles ago no lost of air and it has withstood speeds of 150, 155 and 160 (closed roadway).
Thread Starter
4th Gear
Joined: Jul 2008
Posts: 4
Likes: 0
From: Rockville MD
Thanks for the advice! There's an air station a block away so I'll be sure to fill it up.
I'm taking it up to Criswell in Gaithersburg, I had called them and they told me to bring it up in the morning and didn't mention not having replacements. They've been A++ on all my dealings with them so I trust them to do a good job.
I'm taking it up to Criswell in Gaithersburg, I had called them and they told me to bring it up in the morning and didn't mention not having replacements. They've been A++ on all my dealings with them so I trust them to do a good job.
Instructor
Joined: Nov 2005
Posts: 157
Likes: 0
From: Washington D.C.
Thanks for the advice! There's an air station a block away so I'll be sure to fill it up.
I'm taking it up to Criswell in Gaithersburg, I had called them and they told me to bring it up in the morning and didn't mention not having replacements. They've been A++ on all my dealings with them so I trust them to do a good job.
I'm taking it up to Criswell in Gaithersburg, I had called them and they told me to bring it up in the morning and didn't mention not having replacements. They've been A++ on all my dealings with them so I trust them to do a good job.
Safety Car
Joined: Dec 2007
Posts: 4,070
Likes: 160
From: Coralville Iowa
Le Mans Master
Joined: Jan 2005
Posts: 5,611
Likes: 5
From: Thousand Oaks California
This summer, I punctured my right rear tire. I was 12 miles from home. Knowing I had 0 psi in the punctured tire (I have the Supercar tires that come on the Z51), I drove it home at 45 mph. I had the puncture repaired.
I was under the impression that if you did not drive over 55 mph and did not drive over 25 miles, the EMT tire would survive. Well, after the tire was repaired, it was very noisy. It sounded like a worn bearing in the differential. Very annoying, so I ended up buying a new set of the Goodyear Supercar tires. It was close to time anyway.
I was disappointed, because I though driving at 45 mph for 12 miles would not damage the tire. But it did. Yes, it got me home OK, but not without some unexpected tire damage. I though run flats could be driven flat for short distances at low speeds and hold up. Did I miss the point of run flats?
As per the Owner's Manual:
The shorter the distance you drive and the
slower the speed, the greater the chance that the tire
will not have to be replaced. If you drive on a deflated
run-flat tire for 25 miles (40 km) or less and at speeds of
55 mph (90 km/h) or less, there is a good chance that
the tire can be repaired. The tire can operate effectively
with no air pressure for up to 100 miles (160 km) at
speeds up to 55 mph (90 km/h), but the tire would then
have to be replaced.
I was under the impression that if you did not drive over 55 mph and did not drive over 25 miles, the EMT tire would survive. Well, after the tire was repaired, it was very noisy. It sounded like a worn bearing in the differential. Very annoying, so I ended up buying a new set of the Goodyear Supercar tires. It was close to time anyway.
I was disappointed, because I though driving at 45 mph for 12 miles would not damage the tire. But it did. Yes, it got me home OK, but not without some unexpected tire damage. I though run flats could be driven flat for short distances at low speeds and hold up. Did I miss the point of run flats?
As per the Owner's Manual:
The shorter the distance you drive and the
slower the speed, the greater the chance that the tire
will not have to be replaced. If you drive on a deflated
run-flat tire for 25 miles (40 km) or less and at speeds of
55 mph (90 km/h) or less, there is a good chance that
the tire can be repaired. The tire can operate effectively
with no air pressure for up to 100 miles (160 km) at
speeds up to 55 mph (90 km/h), but the tire would then
have to be replaced.
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Brett Foote
Race Director
Joined: Mar 2005
Posts: 10,399
Likes: 25
From: Austin Texas
There is NO GM, Chevy or Dealership Warranty on the tires. Goodyear has the Warranty, only authorized Goodyear shops can repair or replace the runflats under warranty.
For a quick, easy repair go to the nearest Discount Tire, they repaired mine for free.
For a quick, easy repair go to the nearest Discount Tire, they repaired mine for free.
Melting Slicks
Joined: Nov 2004
Posts: 2,043
Likes: 2
From: Bergen County, NJ Sarasota, FL
Sorry to hear about your flat.
I carry a small 12v compressor in the back.
http://www.chpower.com/webapp/wcs/st...1_10651_10784_
I've only used it once and don't know if it prevented any damage, but I feel good having it if I ever have a problem far away from anywhere.
I carry a small 12v compressor in the back.
http://www.chpower.com/webapp/wcs/st...1_10651_10784_
I've only used it once and don't know if it prevented any damage, but I feel good having it if I ever have a problem far away from anywhere.
Le Mans Master
Joined: Feb 2002
Posts: 5,394
Likes: 281
From: cumming ga
z51vett
Racer
Joined: Aug 2008
Posts: 266
Likes: 0
From: San Antonio TX
Le Mans Master
Joined: Jun 2007
Posts: 7,610
Likes: 12
Race Director
Joined: Dec 2007
Posts: 19,574
Likes: 167
From: Frederick, MD
I personally like the safety factor of run flats. Lose air quick with a non run flat and you can almost kiss your rim good-bye and the tire stands a chance of being damaged if left without air. Corvette wasn't designed to be MB or Lexus.
Le Mans Master
Joined: Jun 2007
Posts: 7,610
Likes: 12
Also, plenty of threads with arguments for/against
Safety Car
Joined: Oct 2007
Posts: 4,269
Likes: 4
From: Mililani HI
This summer, I punctured my right rear tire. I was 12 miles from home. Knowing I had 0 psi in the punctured tire (I have the Supercar tires that come on the Z51), I drove it home at 45 mph. I had the puncture repaired.
I was under the impression that if you did not drive over 55 mph and did not drive over 25 miles, the EMT tire would survive. Well, after the tire was repaired, it was very noisy. It sounded like a worn bearing in the differential. Very annoying, so I ended up buying a new set of the Goodyear Supercar tires. It was close to time anyway.
I was disappointed, because I though driving at 45 mph for 12 miles would not damage the tire. But it did. Yes, it got me home OK, but not without some unexpected tire damage. I though run flats could be driven flat for short distances at low speeds and hold up. Did I miss the point of run flats?
As per the Owner's Manual:
The shorter the distance you drive and the
slower the speed, the greater the chance that the tire
will not have to be replaced. If you drive on a deflated
run-flat tire for 25 miles (40 km) or less and at speeds of
55 mph (90 km/h) or less, there is a good chance that
the tire can be repaired. The tire can operate effectively
with no air pressure for up to 100 miles (160 km) at
speeds up to 55 mph (90 km/h), but the tire would then
have to be replaced.
I was under the impression that if you did not drive over 55 mph and did not drive over 25 miles, the EMT tire would survive. Well, after the tire was repaired, it was very noisy. It sounded like a worn bearing in the differential. Very annoying, so I ended up buying a new set of the Goodyear Supercar tires. It was close to time anyway.
I was disappointed, because I though driving at 45 mph for 12 miles would not damage the tire. But it did. Yes, it got me home OK, but not without some unexpected tire damage. I though run flats could be driven flat for short distances at low speeds and hold up. Did I miss the point of run flats?
As per the Owner's Manual:
The shorter the distance you drive and the
slower the speed, the greater the chance that the tire
will not have to be replaced. If you drive on a deflated
run-flat tire for 25 miles (40 km) or less and at speeds of
55 mph (90 km/h) or less, there is a good chance that
the tire can be repaired. The tire can operate effectively
with no air pressure for up to 100 miles (160 km) at
speeds up to 55 mph (90 km/h), but the tire would then
have to be replaced.
Team Owner
Joined: Jun 2005
Posts: 46,295
Likes: 2,596
From: Northern, VA
St. Jude Donor '15
"In honor of jpee"
Le Mans Master
Joined: Jan 2005
Posts: 5,611
Likes: 5
From: Thousand Oaks California
Not sure what happened on your case. But on mine it was a Sunday I took my wife to work and after I dropped her off as I was driving around I got a low pressure warning to my left front tire. I started to head home and then the warning went to left front tire FLAT, I pulled into a shopping center and looked and there was a screw in my tire. I had to drive about 8 miles to get home on a flat tire but the run flats held up, once the tire is flat the computer will allow you to drive in reduce power mode, meaning you cannot go faster then 50 mph. I repaired my own tire and haven't had a problem since the repair. This was 8K miles ago and the tire is still running strong but alas nearing the end of it's thread life.
Yes, I do not understand why driving at 45 mph for 12 miles caused the run flat to become excessively noisy. I was well below both the max run flat speed and driving distance for the Goodyear EMT while at 0 psi. Since that event, I am now much less enthusiastic about the Goodyear EMTs. I feel the tire did not do what it was advertised to do. While I was able to drive at 0 psi for 12 miles, I was not able to drive at 0 psi without somehow damaging the tire.