Oils · Patent
Hydrogen Engine Oil Is Not Low-Ash Diesel: Pre-Ignition and Water
US 2025/0197755 uses molybdenum chemistry to cut abnormal combustion in hydrogen engines. A parallel WO filing targets rust, corrosion and emulsion retention because H2 combustion makes water. Trace base oil shortens hydrogen…
Direct answer
US 2025/0197755 uses molybdenum chemistry to cut abnormal combustion in hydrogen engines. A parallel WO filing targets rust, corrosion and emulsion retention because H2 combustion makes water. Trace base oil shortens hydrogen auto-ignition delay — the opposite of gasoline LSPI logic. Do not relabel CK-4.
- US 2025/0197755 uses molybdenum chemistry to cut abnormal combustion in hydrogen engines.
- Hydrogen ICE oil filings (Mo for pre-ignition; rust/emulsion in H2 engines) are a 2025 prior-art map. Ash, rust and water from combustion change the DI. Do not relabel a CNG oil as H2 oil.
- Name the test method on any number that reaches a TDS.
- Patents and papers are prior art, not a product Lubechem sells.
- Written for Indian blenders watching H2 ICE OEM programmes.
How H2 ACE differs from gasoline LSPI
How H2 ACE differs from gasoline LSPI. US 2025/0197755 uses molybdenum chemistry to cut abnormal combustion in hydrogen engines. A parallel WO filing targets rust, corrosion and emulsion retention because H2 combustion makes water. Trace base oil shortens hydrogen auto-ignition delay — the opposite of gasoline LSPI logic. Do not relabel CK-4.
Hydrogen ICE oil filings (Mo for pre-ignition; rust/emulsion in H2 engines) are a 2025 prior-art map. Ash, rust and water from combustion change the DI. Do not relabel a CNG oil as H2 oil.
Literature/prior art for this note: US 2025/0197755 A1 (Mo for H2 pre-ignition); WO 2025/059629 A1 (rust/emulsion in H2 engines). Read it as evidence under its own method, not as a formula you can paste onto an Indian CoA.
The reader is Indian blenders watching H2 ICE OEM programmes. Search phrases around “hydrogen engine oil formulation” should land on a decision: duty, method, purge, SKU sequence — then a link to the manufacturing page, not a second SOP.
Molybdenum, phosphorus and ash as competing knobs
Molybdenum, phosphorus and ash as competing knobs. US 2025/0197755 uses molybdenum chemistry to cut abnormal combustion in hydrogen engines. A parallel WO filing targets rust, corrosion and emulsion retention because H2 combustion makes water. Trace base oil shortens hydrogen auto-ignition delay — the opposite of gasoline LSPI logic. Do not relabel CK-4.
Hydrogen ICE oil filings (Mo for pre-ignition; rust/emulsion in H2 engines) are a 2025 prior-art map. Ash, rust and water from combustion change the DI. Do not relabel a CNG oil as H2 oil.
The reader is Indian blenders watching H2 ICE OEM programmes. Search phrases around “hydrogen engine oil formulation” should land on a decision: duty, method, purge, SKU sequence — then a link to the manufacturing page, not a second SOP.
Water, emulsion and rust — the other half of the oil
Water, emulsion and rust — the other half of the oil. US 2025/0197755 uses molybdenum chemistry to cut abnormal combustion in hydrogen engines. A parallel WO filing targets rust, corrosion and emulsion retention because H2 combustion makes water. Trace base oil shortens hydrogen auto-ignition delay — the opposite of gasoline LSPI logic. Do not relabel CK-4.
The reader is Indian blenders watching H2 ICE OEM programmes. Search phrases around “hydrogen engine oil formulation” should land on a decision: duty, method, purge, SKU sequence — then a link to the manufacturing page, not a second SOP.
What a first H2 ICE SKU trial should measure
What a first H2 ICE SKU trial should measure. US 2025/0197755 uses molybdenum chemistry to cut abnormal combustion in hydrogen engines. A parallel WO filing targets rust, corrosion and emulsion retention because H2 combustion makes water. Trace base oil shortens hydrogen auto-ignition delay — the opposite of gasoline LSPI logic. Do not relabel CK-4.
The reader is Indian blenders watching H2 ICE OEM programmes. Search phrases around “hydrogen engine oil formulation” should land on a decision: duty, method, purge, SKU sequence — then a link to the manufacturing page, not a second SOP.
Lubechem will not invent a client list or a certificate. If the next step is a trial, send the duty brief. If the next step is legal clearance of a filing, that sits with a patent attorney.
What this page is for
2025 patents, future-facing, sits next to Lubechem’s CNG oil page. Castrol already named hydrogen in India commentary. Images are labelled conceptual illustrations. Patents and papers are cited so you can go read them.
How to use this filing as prior art — not as a recipe
| Question | What to extract | What not to do |
|---|---|---|
| What problem is claimed? | Hydrogen Engine Oil Is Not Low-Ash Diesel: Pre-Ignition and Water | Do not treat the abstract as a proven plant SOP |
| Thickener / additive families named | hydrogen engine oil formulation | Do not copy claim language into a TDS |
| Examples vs claims | Worked oils, solids, treat ranges in examples | Examples are not a licence |
| Design-around | Unclaimed process windows, other thickeners | FTO is legal advice; Lubechem does not issue it |
| Citation in this article | US 2025/0197755 A1 (Mo for H2 pre-ignition); WO 2025/059629 A1 (rust/emulsion in H2 engines) | Cite, do not reproduce claims |
People-first note: this is dated editorial for decision-making. It is not a scaled rewrite of the manufacturing pages, and it is not legal or certification advice.
Questions plants actually ask
Is hydrogen engine oil formulation a drop-in for whatever we run today?
Almost never. Thickener family, base-oil viscosity, NLGI grade and additive response all have to be matched to the duty. A purge plan comes before a plant-wide switch. Compatibility charts are screens, not guarantees.
Can we put hydrogen engine oil formulation on the TDS because a patent or paper mentioned it?
No. Patents are prior art. Papers are evidence under stated conditions. A TDS line has to be backed by a method you actually ran, on oil you actually stock, at a treat you can buy twice.
Who owns the formula if Lubechem develops it?
Ownership is the contract. The practice is independent formulation with IP transfer as scoped — not a branded additive package you can never leave. Ask for the assignment language before the first kettle.
What should Indian blenders watching H2 ICE OEM programmes send in the first brief?
Duty (load, speed, water, temperature, relube), the current TDS and fail mode, target specs (IS / ASTM / OEM), and whether the product is sold, used in-house, or exported. Photographs of the failed component help more than adjectives.
Literature and prior art
Citations below are orientation, not a freedom-to-operate opinion. Lubechem does not copy claimed compositions and does not treat a patent as a product endorsement.
- US 2025/0197755 A1 (Mo for H2 pre-ignition); WO 2025/059629 A1 (rust/emulsion in H2 engines) — cited as prior art or literature, not as a product Lubechem sells
- ASTM D445 kinematic viscosity — grade identity, not film strength
- ASTM D4172 / D2783 wear and EP — bench screens, not a field duty cycle
- API 1509 base-oil groups — saturates, sulfur, VI — not a performance licence
- SAE J300 — engine-oil viscosity grades