Conditions of Reading

Educational information, not engineering approval

The website provides general comparisons and explanations of marine propulsion. It does not supply personalised engineering, installation certification, a vessel survey, navigation advice or an assurance that a product is suitable for your boat. Reading a guide or sending an enquiry does not establish a professional advisory relationship.

Marine machinery involves serious risks, including fire, electric shock, stored energy, rotating equipment, hot surfaces, flooding and exhaust exposure. Use current manufacturer instructions, qualified professionals and applicable regulations for selection, installation, maintenance and operation. Do not use an illustrative diagram as a construction or wiring plan.

Accuracy and changing specifications

We aim to make comparisons clear and appropriately qualified, but information can become incomplete or outdated. Product variants, ratings, emissions approvals, warranties and availability can differ by region and date. Confirm decision-critical details with the manufacturer or authorised supplier before purchase or modification.

Hypothetical calculations are labelled and show a method only. They are not warranties of fuel consumption, range, battery life or performance. Photographs of generic machinery do not establish its make, model or compliance.

No universal recommendation

References to manufacturers, engine families and standards help readers locate relevant information. They do not constitute an endorsement, affiliation, sponsorship or a finding that a product meets your requirements. We do not sell engines through this site, and source links in this edition are not affiliate links.

Local tools and correspondence

The contact worksheet constructs a plain-text draft locally. Preparing, copying or downloading the draft does not send it. You are responsible for reviewing the content and deciding whether to share it through your own email service. Browser permissions or settings can affect copying, downloading and preference storage.

We do not guarantee a response, response time or resolution to enquiries. Do not use the contact address for urgent assistance. In an emergency, use the appropriate local maritime or emergency service.

Intellectual property and source material

Original site text and presentation are protected to the extent provided by applicable law. You may link to pages and use material as permitted by law. For reproduction beyond lawful exceptions or personal reference, request permission. Third-party names, trademarks, standards and source materials remain the property of their respective owners. Linking to a standard does not grant a licence to reproduce it.

Acceptable use

Do not attempt to disrupt the site, circumvent security controls or use its contact details for unlawful, abusive or unsolicited bulk communications. Do not misrepresent an excerpt as a vessel approval or remove qualifications in a way that makes a comparison misleading.

External websites and availability

External sources are independently operated and may change or become unavailable. Their own terms apply. This website may also be revised or temporarily unavailable; uninterrupted access and error-free operation are not promised.

Liability and mandatory rights

To the extent permitted by applicable law, the website and its information are provided without a guarantee of fitness for a particular purpose. Nothing in these conditions excludes liability that cannot lawfully be excluded, or removes mandatory consumer or other statutory rights. Decisions affecting vessel safety should not rely on this website alone.

Questions and corrections

Contact [email protected] about these conditions or an apparent error. For information about personal data and local storage, read Privacy and Cookies.