Who do I ask for a price, an order or a trial?
W.Y. Group, mrkt@wyholding.eu, +49 176 31305711. The contact form only opens a draft. You send it.
Home / FAQ
Questions that change who you write to
Short answers. The product pages and the legal page carry the detail.
Who is the manufacturer?
SLSB International (Jaso Pty Ltd trading as SLSB International on the published Australian details). Technical reference: info@slsbinternational.com, +61 422 975 327. That address is not the sales desk.
What does “exclusive worldwide authorized distributor” mean here?
The authorization reviewed for this site certifies W.Y. Holding (Europe) GmbH as exclusive authorized distributor of SLSB International fuel treatment and environmentally friendly products and services, as specified in the global distributor agreement dated 17 January 2025. Public wording on this site is “W.Y. Group — Exclusive Worldwide Authorized Distributor”. Legal names differ across papers, so this site does not invent a single corrected company name. It does not call the authorization permanent, does not widen the product list, and does not publish the agreement or the signature.
What dose do I use?
Land: initial 1:2,500, maintenance 1:5,000. Marine maintenance: 1:10,000. Marine initial 1:5,000 is printed on the current pages and the deck but is not separately confirmed — ask the manufacturer before treating it as an instruction. Older land ratios 1:2,000 and 1:4,000 are not used.
Will I save 3%, 6% or 1.5%?
No figure on this site is a promised saving. The shop test is about 1–1.5% on that engine. A brochure range of 3–6% is a summary of reported cases. The calculator slider is your hypothesis.
Are the prices on the price page live?
No. EU diesel is the Commission’s weekly consumer price, observed on Monday and published on Thursday. Bunker port prices and EEX EUA prints are not republished. If a feed is missing or past its next publication date, the status says so and you type a price yourself.
Is the carbon number income?
No. It is an optional estimate of carbon compliance cost, excluded from net cash by default. It is not a credit you can sell. Many voyages and trucks are outside the EU ETS. There is no financial or compliance guarantee.
Does the language switch keep my calculator?
It opens the same page in the other language and keeps the query string. Calculator rows are stored in this browser, not on a server.