Testosterone can be administered parenterally , but it has more irregular prolonged absorption time and greater activity in muscle in enanthate , undecanoate , or cypionate ester form. These derivatives are hydrolyzed to release free testosterone at the site of injection; absorption rate (and thus injection schedule) varies among different esters, but medical injections are normally done anywhere between semi-weekly to once every 12 weeks. A more frequent schedule may be desirable in order to maintain a more constant level of hormone in the system.  Injectable steroids are typically administered into the muscle, not into the vein, to avoid sudden changes in the amount of the drug in the bloodstream. In addition, because estered testosterone is dissolved in oil, intravenous injection has the potential to cause a dangerous embolism (clot) in the bloodstream.
During the three-year warranty period offered by most manufacturers there are an average of claims per car against guarantees. During seven years, Kia customers make an average claims. That's of a claim per car in the final four years of the warranty. This means the Kia cars get checked and repaired more and get more reliable in the long run. This seems to have a positive effect on the used value of Kia cars on the second hand market. The customer therefore wins twice: he gets 7 years of peace of mind, and a higher resale price. Kia from its side, almost tripled its market share.