Western Star 4964FX - Fuel Efficiency Project


Biotechnix installed the Biotechnix Fuel System on this Western Star truck on 8th August 2012.
The truck is powered by a Cummins 1SX EGR. It is used in a B-Double configuration. The truck transports coal 24 hours a day for a mining operation in NSW. It had very high fuel consumption as it operated on Mt Ousley.


  • To compare the improvement in diesel fuel consumption after installing the Biotechnix Fuel System with the 3 months prior to installing the Biotechnix Fuel System. 


  • After the Biotechnix Fuel System ‘bedded in’ (approx. 2 weeks) the fuel saving became evident. 
  • At the end of the project the overall fuel saving across the five months (78,175 kms) was 6.69%. This equates to 12,596 litres of fuel saved per year. 
  • Using a fuel cost of $1.45 per litre this translates into a projected saving of $18,264 per year or $36,528 over a 2 year period. 
  • Carbon emissions were reduced by 2.8 tonnes per month or approximately 33.6 tonnes per year.