Did you know Schaeffer's Webscope PM Lab Comprehensive Oil Analysis Testing lab program can help you safely and scientifically use half as much engine oil per year? Simply take an oil sample during your regular oil change interval and mail it using the free postage included with the kit to Schaeffer's lab.
In most cases it takes a few days and you'll get an email linking the oil test results with a recommendation of how much further you can safely go until the next oil change. Most of Schaeffer's customers change their automobiles oil every 10,000 miles.
The Spectrographic analysis (919) includes infrared analysis, viscosity, and wear metal testing. Additional testing such as Total Base Number (TBN), or Total Acid Number (TAN), may be included with the Spectrographic analysis by ordering the (928) kit. We recommend using the (928) kits for testing diesel engine oils, crankcases, transmissions and rear-ends especially when extended drain intervals are desired. Regular testing is recommended because over time acid levels begin building and can be tolerated up to a certain level but not beyond.
Webscope oil analysis testing kits can be purchased here at www.Buy1oils.com
All prices are in USD.