Four-in-One oil analysis determines oil cleanliness, including particle count, water content, and viscosity. Samples are categorized as normal (system operating within established parameter and requires no immediate action), caution (system operating outside caution limits and requires scheduled maintenance), or critical (system operating beyond critical limits and requires immediate attention). Specific corrective actions are recommended.

Schroeder Industries, (724) 318-1100, www.schroederindustries.com.