Tires

Question 94
Posted by C on June 27, 2005

Dear Sir
Iam working with John Deere India.I just want to know what is material composition by % in tractor tyres(like RSS4,SBR,carbon black,Nylon cord,wire&chemicals) what is the value addition of same.How to track the basic raw material?Is there is any site from which i can get online prices for these material on daily/weekly basis.How these material price is linked with crude oil prices and what is value contribution to that.Please clarify my doubt.

Regards
C MAHADEV IYER

Question 93
Posted by James on June 27, 2005

Does the tire industry have a formula for tire life increases for a reduction in temperature? I know if you run a tire low on air pressure and it builds up heat that the life expectancy is usually lower. If you run a truck tire 50-100 degrees higher then a comparible tire what would be your expected loss of tire life if any?

Question 95
Posted by John on June 23, 2005

I have a large delivery fleet ranging from mini vans to tractor trailers with the mojority being walk in step vans with 8R-19.5 tires. The actual load weights will vary for each vehicle. Is there a tire pressure formula I can use to get the best fuel mileage and tire life?

Question 96
Posted by Michael on June 15, 2005

According to Goodyear.com’s Load/Inflation page, my 6 245/70R19.5F RV tires can handle up to 24,040 lbs at 85 PSI. Can I safely inflate to 90 or 95 PSI considering my coach has a GCWR of 25,700? Thank you.

Question 92
Posted by Michael on June 14, 2005

Hi Mr. Cohn, I am the Cumberland County Emergency Medical Services Fleet Maintenance Officer. I have one of the largest fleets of ambulances in the state of NC. We use Good Year Tires; 19.5 and I read an article about Good Year’s TVTRACK Software in Fleet Owner Magazine. This software seems to provide a lot of tire data collections. How would I be able to get more detailed info on this program, and how much does it cost? Thanks, Mike Griffin