About Us

WELCOME

We're here to help you.

We offer scientifically proven products , plus free technical service that will save you "serious" money, when you want to save fuel, save oil, stop engine smoke, decarbonise and save an engine re-build, or generally reduce your vehicle, boat and machinery maintenance costs.

We offer corrective maintenance solutions to a range of common engine, vehicle and boating problems, which will concurrently reduce your “carbon footprint” and lower harmful engine exhaust emissions at a fraction of mechanical repair costs, whilst saving you valuable down-time.

Please click on our FREE "do-it-yourself" Engine Health Check .. we expect it will save you a lot of time and money.

Please click on our "Good News" to read about our latest $$$ savings for you, which carry our 200% money back guarantee on product performance.

Thank you for visiting our website .. we trust it helps you, like it has done for all our customers."

Ross McLean, Managing Director.
PS: We DO NOT sell “snake oils” or “cure-all” products.

MORE About Us ..

Please scroll down.

We started a business in 1978, helping people solve problems .. so we have a wealth of experience to share.
Our team is passionate about reducing pollution from diesel engines.
Help lines .. Please use our internal "search engine" at the top left of each page, or our FREE "do-it-yourself" Engine Health Check .. we expect it will save you a lot of time and money. If you have any queries about our products, or require help with an engine problem, please contact us for assistance .. we may take a few days to reply in detail to your email. We know a team of hands-on experts including marine diesel engineers, motor mechanics, auto-electricians, boat builders and riggers. We provide FREE advice and real solutions to our customers. Most times our products cost a small fraction of the cost of a mechanical repair. If we can’t help you, then we will try to find somebody who can.

We only retail (supply) our chemical products within New Zealand, but we may be able to help you find a supplier elsewhere .. please ask. Trade enquiries, including outside New Zealand are welcomed.

We can help you make a positive environmental impact by adding longevity to your boats, machinery and vehicles.

We search the world to bring you environmentally friendly, cost effective maintenance products and practical articles that help machinery operate more efficiently and last longer between rebuilds.

You may like to be one of the first to read about a major breakthrough in reducing air pollution from diesel engines, by using the new DD-STROBE® diesel fuel injection timing light.

Consider for a moment, the huge negative environmental impact of producing a new machine, new engine, or components .. compared with the positive impact of simply maintaining existing ones in good working order. Think of the raw materials and where they come from, the processing, the energy required and it's source, the transportation and packaging in getting the new item to market .. then consider the waste disposal in the whole process .. enormous?

About our MD ..

Our Managing Director, Ross McLean, B.Sc. Otago, has over 46 years hands-on technical experience with chemicals used in boats, vehicles, industry, agriculture, horticulture, animal and public health. Ross has a special interest in reliable, affordable products that solve problems and enhance the environment. Ross designed this website and took most of the photos.

Ross and colleagues in NZ :

.. introduced a liquid iron-complex decarboniser (deglaze / decoke) for internal combustion engines, which pays for itself in fuel savings and can greatly reduce air pollution from engine exhausts, FTC®
.. are currently developing a novel diesel engine fuel injection timing light DD-STROBE®
.. researched and introduced organic pine resins to reduce pesticide use on food crops by approx 66%
.. introduced a natural granulosis virus to control codling moth in organic apple production.
.. researched and introduced phosphites to stimulate natural alexins within plants as replacements for synthetic fungicides.
.. are currently developing a non-mechanical surface restorative oil additive, based on nanotechnology, to re-build worn metal components, such as cylinder walls, pistons, cams and bearings, while the machinery is running, without you touching a spanner to improve engine performance and reduce air pollution worldwide.

NEPTUNE Products (also trading as "A STOP to SMOKE" ®) are marketed by ROSMAC Ltd ®, a privately owned technically based company in Mariners Cove, Beach Haven, Auckland, New Zealand.

® tradenames.