landfill gas engine case study

Silicon Removal

This case study shows how Delta-Xero tested landfill gas engines, including CAT 3516, CAT 3520, Jenbacher 320 and Jenbacher 420, to prove that silicon levels alone do not accurately show how harmful the contamination really is. It uses POLARIS lab analysis and Micro Patch Ferrography to reveal abrasive wear, varnish and contamination that standard oil analysis can miss. It also shows before/after examples where Delta-Xero reduced abrasive contamination by around 98% and helped extend oil drain intervals.

High Silicon levels are a key indicator in determining oil change intervals for landfill gas engines.
case study

Silicon Removal

Delta-Xero has completed R&D field testing over the last year on several landfill gas engines. High Silicon levels are a key indicator in determining oil change intervals for landfill gas engines. Through third party lab analysis trending we show a significant reduction in silicon levels with our system fitted.  

Customer Savings 

• 67.4% percentage reduction in oil drains. 

• 63% reduction in Silicon and associated abrasive elements. 

• Resulting in a 46% cost reduction per year 

The full case study details how silicon levels were reduced, how trends evolved over time, and what this means for oil drain strategy on landfill gas engines. 

Related Case Studies

About us - Delta-xero

Reduced iron levels and lower PQ index

A 1.5 MW wind turbine gearbox showed persistent contamination risk despite routine oil analysis. To understand the true internal condition of the gearbox, debris captured inside an offline filtration unit was analysed after extended in-service operation. Standard oil samples alone were not showing the full extent of varnish, wear debris, and moisture present within the system.  

View Case Study
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
contact us

Ready to transform your oil management?