KNOWLEDGE HUB
Industrial Lubrication Guides
Practical, engineer-written guides on selecting, storing and monitoring industrial lubricants, from the PCG Technical Desk.
How to Check Genuine SERVO Oil: Fake Lubricant Identification GuideHow to check genuine IndianOil SERVO oil and avoid fake or re-filled lubricants: packaging, seals, invoice, batch documents and buying from …Hydraulic Oil 46 vs 68: Differences and How to ChooseISO VG 46 vs 68 hydraulic oil explained: viscosity difference, operating temperature, pump requirements and when to use SERVO System 46 or 6…ISO VG Viscosity Grade Chart (ISO 3448)Complete ISO VG viscosity chart (ISO 3448): midpoint and min–max kinematic viscosity at 40 °C for VG 2 to VG 3200, with SERVO hydraulic, gea…Hydraulic Oil Grades Explained: Viscosity and TypeHydraulic oil grades explained: viscosity (ISO VG) plus type — HH, HL, HM/HLP, HV/HVLP, fire-resistant and bio-degradable — with matching SE…How to Choose Industrial Gear Oil Viscosity and TypeHow to choose industrial gear oil viscosity and type: OEM nameplate, speed, load, temperature, EP vs non-EP and worm gear oil selection. Eng…DIN 51524 HLP Meaning: Hydraulic Oil Classes ExplainedWhat DIN 51524 HLP means: Part 1 (HL), Part 2 (HLP) and Part 3 (HVLP) hydraulic oil classes, what they test, and which SERVO hydraulic oils …DIN 51517 CLP Meaning: Industrial Gear Oil ClassesWhat DIN 51517 CLP means for industrial gear oils: Part 1 (C), Part 2 (CL), Part 3 (CLP), what CLP requires and which SERVO gear oils list D…Thermic Fluid Maintenance: Replacement Interval and CrackingWhen to replace thermic fluid: tests (viscosity, acid number, flash point, carbon residue), signs of thermal cracking & oxidation, and heate…Soluble Cutting Oil: Concentration, Mixing and Stopping Coolant SmellSoluble cutting oil concentration ratio, how to mix soluble oil with water, measuring with a refractometer and fixing CNC coolant smell (bac…NLGI Grease Grades Chart and EP 2 Grease UsesNLGI grease consistency grades 000 to 6 with worked penetration ranges, what EP 2 grease is used for, and matching SERVO greases like Servog…Hydraulic Oil Change Interval: Change on Condition, Not the CalendarWhen to change hydraulic oil: why fixed hours waste money, what oil analysis tells you (viscosity, acid, water, particles) and practical pla…Oil Analysis Limits: Water PPM, ISO 4406 Cleanliness, TAN and TBNOil analysis explained: water in hydraulic oil ppm limits, ISO 4406 cleanliness code chart, TAN and TBN meaning, and typical cleanliness tar…API CK-4 vs CI-4: Diesel Engine Oil Categories ExplainedAPI CK-4 vs CI-4 diesel engine oil explained: when each was introduced, backward compatibility, FA-4, and how to pick the right SERVO diesel…Electric Motor Bearing Grease: How Much and How OftenElectric motor bearing greasing guide: choosing grease, the G = 0.005 × D × B regreasing quantity formula, intervals, and why over-greasing …Lubricant Storage Best Practices for PlantsLubricant storage best practices: drums indoors or on their side, first-in-first-out, labelling, clean transfer containers, breathers and fi…GST on Lubricants and HSN Code for Hydraulic OilGST on lubricants in India: HSN chapter 2710 for lubricating oils and greases, the 18% GST rate, what to check on your invoice, and claiming…
