By using an oil analysis kit from AMSOIL, OIL ANALYZERS INC. can analyze your oil to determine if your oil is protecting your vehicle's engine. And, also can detect mechanical problems before you have problems with your vehicle's engine. After being sent in, a report will be sent to you to show the condition of your oil, as well as the amount of wear, present in your engine. AMSOIL provides Oil Analysis service options, as well as coolant testing, diesel fuel contamination testing, diesel fuel performance testing, and winter diesel fuel tests. AMSOIL also recommends using oil analysis when extending oil drain intervals. For more information on oil analysis and OIL ANALYZERS INC. go to www.oaitesting.com