OELCHECK GmbH
About
OELCHECK GmbH, founded in 1991 by Barbara and Peter Weismann in Brannenburg, Upper Bavaria, Germany, operates as Europe's leading independent lubricant and operating fluid analysis laboratory. Originally established as WEARCHECK and rebranded in 2009, the 100% family-owned company runs a 2,000-square-meter facility processing up to 2,000 samples daily through over 100 analytical instruments, determining up to 50 diagnostic parameters per sample with next-business-day turnaround. OELCHECK's analysis portfolio spans 21 fluid categories including engine oils, hydraulic fluids, gear oils, turbine oils, transformer oils, compressor oils, heat transfer fluids, refrigerants, coolants, fuels, and greases — each served by tiered kits from basic screening (Set 1) through comprehensive diagnostics (Set 5). Diagnostic parameters cover wear metals via ICP-OES, viscosity at 40°C and 100°C, water content by Karl Fischer, acid and base numbers, particle counts per ISO 4406, oxidation stability via RULER, dissolved gas analysis for transformer oils, and flash point testing. Tribological reports are produced exclusively by experienced analysts in Germany, leveraging a reference database of over 4 million samples and 10,000 fresh oil profiles. The company serves more than 45,000 customers across wind energy, mechanical engineering, petrochemical, and facility maintenance sectors. Digital tools include the LAB.REPORT customer portal, OELCHECK App 4.0 for mobile sample registration, and a CO2 calculator for lubricant-related carbon footprint assessment.
Key Products
Comprehensive lubricating oil testing for wear metals, contamination, viscosity, acid number, and degradation indicators across engines, hydraulics, gearboxes, turbines, and compressors
Testing of grease lubricants for consistency, wear particles, contamination, oil separation, and oxidation to assess remaining useful life and performance
Assessment of coolant and operating fluid condition including freeze protection, pH, corrosion inhibitor concentration, and degradation products
Evaluation of fuel quality, contamination levels, degradation, and storage stability for diesel, gasoline, and alternative fuels
Pre-assembled sample submission kits with complete sampling instructions, sample containers, and prepaid shipping materials for convenient analysis ordering
Online customer portal for entering sample information, tracking analysis progress, accessing historical results, and managing sample data
Mobile application for convenient sample registration, result access, and notification of completed analyses on smartphones and tablets
Tool for calculating the CO2 impact of lubricant usage and identifying sustainability improvements through optimized oil change intervals
Expert interpretation of analysis results by experienced tribologists with comparison to a database of over 10,000 fresh oil and grease reference profiles
Training and educational programs on lubricant analysis, condition monitoring, and maintenance strategies for engineers and technicians
Laboratory Information and Management System containing over 4 million sample records spanning 25-plus years for trend analysis and benchmarking
Worldwide distribution of analysis kits and customer support through exclusive agents across multiple countries and regions
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