About Us



The Leading Automatic Fuel Dosing System Provider

We are the leading vehicle fuel dosing technology provider specialising in unique and automatic Fuel Additive Applicator systems for dosing and treating vehicle, machinery, vessel or bulk storage fuel tanks, or directly into the fuel flow during fuelling.


Towai Technologies Limited 

In 2006 Towai Technologies identified the need to overcome the aversion to manual dosing and to provide the tool to enable additive companies to sell more of their products. 

As a result, we designed and developed an autonomous Fuel Additive Applicator System with a self-contained and automatic Fuel Additive Applicator that will dispense the correct volume of all known fuel additives over a wide range of operating and climatic temperature conditions.

Combined with a proven and validated fuel additive, our Fuel Additive Applicators provides a complete fuel treatment system.

Managing Director 

Ron Longley is the Managing Director and has wide ranging experiences.

Ron had 28 years in the Royal New Zealand Navy (RNZN) as a marine engineer. He started as an Artificer Apprentice and worked his way up to the senior rank of Commander, and was awarded the OBE. His postings and experiences included: 

  • 13 years at sea and 8 years in overseas postings.
  • 2 years as the technical advisor to the Republic of Singapore Navy.
  • Being the Principal Naval Overseer responsible for the commercial refit of an RNZN Frigate in a UK shipyard at a value of around $100 million in 2019 dollars.
  • Being the Fleet Engineer Officer responsible for all engineering matters relating to the Fleet.

Ron then worked in a commercial shipping company for 14 years with 12 years as the Chief Executive of the company with a total turnover of around $1 billion in 2019 dollars, and he travelled extensively.

This was followed by five years as the managing director and shareholder of a mobile data technology company through periods of development and market acceptance until the business was sold to a publicly lisred ompany.

Since 2005 Ron has been involved in his own business focussing on vehicle fuel dosing technology. 

Ron is a Chartered Engineer and a Fellow of the Chartered Institute of Logistics and Transport.

Development Background

During 2005/06, Ron was actively marketing and selling a fuel additive product. It became evident that vehicle or equipment operators did not want their drivers or operators manually dosing fuel tanks and an applicator or dosing unit was needed. A worldwide search revealed that there were no such suitable and reliable products available.

Ron then began developing and testing an applicator system on a full time basis for over five years. This culminated in the development of the Maxi and Mini FAAs, which covers the full range of options as described in the Our Products and Technical Features sections. 

The technology was then further developed so that the Applicators can not only dose additives into vehicle fuel tanks and bulk storage tanks, but also directly into the fuel flow of depot fuel delivery systems, or into fuel tanker delivery flows.

And, following further development, they can dose both large land based bulk fuel storage tanks and also vessel day tanks during fuelling - including fuel transfers while at sea.

Our Vision

With the Applicators fully tested and proven, Towai Technologies has developed a break-through for the fuel additive industry and their customers.

Our vision is to be the primary provider of fuel additive dosing system technology world-wide, thus enabling the benefits of using fuel additives to be more widely available to end users. 

Our Technology Partner

We have teamed with R&D Technology Solutionz Limited as our technology partner.  They provide development and systems integration services for a wide range of applications with proven expertise in vehicle management systems, retail oil industry, automation technology, smart card contactless payment solutions, and product development.  Their focus is not only New Zealand, but also international with customers in Australia, America, Europe, South Africa and India. 

Andrew Rushworth is the Managing Director and their website is www.rds.co.nz