Tires may have date coding shortly - Federal requirement. They out gas and harden up - typically Service life of 4 years ... How many miles do you drive in a year x4 = ? Try those "H" or "V" rated tires - once tried you will never go back David Merv and or Loretta wrote: >Whoa! Don't be heading down the road on those original tires... at least >don't go over two mph or they'll blow!