87% Cleaner Oil

A power generation facility operating a GT26 gas turbine experienced persistent lubrication issues caused by severe varnish formation. Oil analysis showed critically high MPC values, indicating a high risk of varnish-related failures, reduced heat exchanger efficiency, filter blockages, accelerated component wear, and compromised turbine reliability. Previous filtration approaches failed to control varnish levels or stabilise oil condition.  

GT26 Gas Turbine Case Study | Delta-Xero
case study

87% Cleaner Oil

The challenge 

A power generation facility operating a GT26 gas turbine experienced persistent lubrication issues caused by severe varnish formation. Oil analysis showed critically high MPC values, indicating a high risk of varnish-related failures, reduced heat exchanger efficiency, filter blockages, accelerated component wear, and compromised turbine reliability. Previous filtration approaches failed to control varnish levels or stabilise oil condition.  

Customer savings & impact 

After installing Delta-Xero varnish removal filtration, the operator recorded clear, verified improvements: 

  • MPC values reduced dramatically, indicating a significant reduction in varnish potential 

  • Particle counts reduced by up to 87%, improving overall oil cleanliness 

  • Lubricant oxidation stabilised, supporting longer oil life and improved turbine reliability 

The full case study details how varnish levels changed over time, what oil analysis and micropatch testing revealed, and why previous solutions failed to deliver sustainable results.  

Download the complete power generation gas turbine filtration case study, including MPC trends, particle count data, and micropatch analysis. 

Related Case Studies

Off-shore Oil and Gas: Case Study 2

The Additive Myth Debunked

A long-term independent study was carried out by POLARIS Laboratories Europe to assess whether installing Delta-Xero filtration on a landfill gas engine would negatively affect lubricant condition, additive performance, or expected oil drain intervals.

View Case Study
99.98% Contamination Reduction | Biffa Case Study

Significant Financial Savings for Biffa

A Godswill baler, valued at approximately £500,000 and used for processing aluminium and cardboard, suffered five major breakdowns within just six months of installation. Despite being under warranty, the machine experienced two pump failures and three valve failures, resulting in £15,000 in direct repair costs and significant production downtime. Specialist oil analysis revealed that the heavily polluted waste-processing environment was introducing extreme levels of particulate and varnish-like products that conventional maintenance could not identify or remove. 

View Case Study
contact us

Ready to transform your oil management?