A road test was conducted by the Automotive Laboratory of The Atlantic Refining Company on six cars, each of two different makes, to obtain the driver's reactions to four chassis lubricants. Factors to be evaluated included squeaks heard by the driver. An investigation was made of the influence of grease composition on chassis performance; greases tested included an aluminum stearate grease, two lithium soap thickened greases and a non-soap type of grease. Results indicate that a 1,000 mile lubrication frequency is important since a large increase in complaints beyond 1,250 miles of operation was recorded.
