Doncaster

Fluid Testing and Analysis Laboratory

In April 2026, POLARIS Laboratories® acquired Oil Check Laboratory Services Ltd (OCLS) located in Doncaster, UK. 
The UK laboratory delivers fast, precise fluid analysis for oils and lubricants, diesel fuel, coolants, grease, diesel exhaust fluid (DEF) and transformer oil. Serving customers throughout UK and Mainland Europe, this facility delivers fast turnaround times, diagnostic analysis and actionable insights to help maintenance teams improve equipment reliability and reduce unexpected failures.

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Laboratory Information

Address:
Unit 14, Roberts Road Business Park
Roberts Road
Doncaster DN4 0JT
United Kingdom
Customer Experience
Email: serviceeu@eoilreports.com
Phone: +44 1302 329609
Monday thru Friday, 7:30 a.m. – 4:00 p.m.
Data Analysis
Our Data Analysis team is available globally.
Email: da@eoilreports.com
Phone: +44 1302 329609
Monday thru Friday, 7:00 a.m. – 12:30 a.m. ET

Fluids Accepted for Testing at this Location

Lubricant Testing
  • Wear metals
  • Contamination (water, dirt, fuel, coolant)
  • Viscosity
  • Oxidation & thermal degradation
  • Additive health
Diesel Fuel Testing
  • Fuel quality assessment
  • Microbial contamination
  • Water content
  • Stability and storage testing
Coolant Testing
  • Corrosion protection
  • Inhibitors
  • Contamination
  • Freeze point
Grease Testing
  • Base oil condition
  • Contamination
  • Consistency
View All Testing Packages

Sample Drop‑Off & Shipping Information

Shipping Options

Shipping time is the largest factor in speeding up how quickly your sample report is issued. Using a trackable mail service allows you to see exactly when a package was shipped, where it is in transit, and when it arrives at a laboratory. The recommended trackable shipping services include DHL, UPS and FedEx.

Sample Supplies

Order sample kits and sampling supplies via the HORIZON® Store

Industries Served by the Doncaster Laboratory

The Doncaster lab supports a wide range of European industries, including:
Power Generation &
Backup Generator Systems
Construction &
Heavy Equipment
Mining &
Quarrying
Transportation &
Fleet Operations
Industrial &
Manufacturing Plants
Marine &
Port Equipment
Agricultural &
Municipal Operations

About POLARIS Laboratories®

POLARIS Laboratories® operates a network of eight laboratories across North America, Central and Latin America and Europe, offering full‑service testing for lubricants, diesel fuel, DEF, coolants and greases. Powered by AI‑enhanced insights, secure data integrations, and a certified data analysis team — our programs help organizations improve equipment reliability, reduce maintenance costs, and make smarter maintenance decisions.

FREE WEBINAR | ZERO TOLERANCE FOR DOWNTIME: FLUID ANALYSIS FOR CRITICAL POWER SYSTEMS

| February 10

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