Insights · since 2010
Notes from the bench, not the brochure.
Dated analysis for grease plants, blenders and reliability engineers — thickeners, lithium alternatives, EPR, patents as prior art, and what a test method actually measures. Written by an independent formulation practice in New Delhi.
Why Treat Cost Beats Package Price: Building Your Own Additive System
A 12% branded DI package at $X/kg can cost more per finished litre than a 9% component system that hits the same…
Fire-Resistant Hydraulic Fluids: HFC vs HFDU for Steel and Mining
HFC (water-glycol) kills fire with water content; HFDU (polyol ester) kills fire with chemistry and still lubricates like an oil. HFC is…
API CK-4 vs FA-4: What Indian HDD Fleets Should Actually Buy
CK-4 is backwards compatible with older diesel hardware; FA-4 is a lower HTHS fuel-economy oil for specified modern engines only. Pouring FA-4…
CNG Engine Oil: Ash, Nitration and Why a 15W-40 CK-4 Is the Wrong Fill
CNG burns cleaner on soot and harder on nitration and ash. A diesel CK-4’s detergent system is built for soot; gas engines…
Formulating on Group II in India When Group I Is No Longer the Default
Group II is cleaner and more stable than Group I, and a worse solvent for some additives and grease soaps. Copy-pasting a…
5W-30 vs 5W-40: Which Viscosity to Formulate for the Indian Market
5W-30 is the fuel-economy / OEM-fill grade for modern petrol engines; 5W-40 is the higher HTHS grade for hotter, older or ACEA…
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…
White Etching Cracks: When Branched ZDDP and Overbased Sulfonate Hurt Gears
A 2025 Journal of Tribology FE8 study found high concentrations of branched ZDDP and overbased calcium sulfonate were WEC-critical; low concentrations were…
Ionic Liquids as ZDDP Replacements: They Work at 18 °C and Fade at 80 °C
Wear (2025) tested three phosphonium ILs at 1 wt% in PAO4 against ZDDP. [P4442][DEP] won at 18 °C with a thin phosphate…
Ashless Boronium Ionic Liquids: Halide-Free Antiwear Without Zn, S or P
RSC Sustainability (2024), with PETRONAS, reported boronium ILs with carboxylate anions, halide-free synthesis, no Zn/S/P, and solubility work in Group III+. That…
Ashless Friction Modifiers for Marine Oil: 1,3-Diketone plus Nanocopper
Lubricants 2025 combined 9% HPTD 1,3-diketone with 0.2% octadecylamine-nanocopper in a marine oil: sulfated ash −12%, friction −15%, wear track −43%. It…
Linear vs Branched ZDDP: The Same Treat Rate, Different Damage
The 2025 WEC study postponed white etching cracks by switching branched to linear ZDDP but did not prevent them. Secondary (branched) ZDDP…
Will That Ionic Liquid Dissolve in Indian Group II?
QUILL/PETRONAS tuned alkyl chains for Group III+. Wear 2025 used PAO4. Most Indian volume is Group II. An IL that is brilliant…