Oil Condition Monitoring
Find engine trouble in the oil while it is still a planned repair.
Every engine failure has a history. The oil records most of it.
Power · Industry · Fleets
Fixed-hour oil changes and alarms only tell you what has already happened. Oil analysis reads what is happening now. It warns you in time to order the parts and choose the day of the stop.
A bearing rarely fails in a day. Wear, acid, dust and coolant build up for hundreds of running hours first.
Oil condition monitoring at a glance
Petroleum Division · OGRA-approved third party
48 h
From receipt to report
8
Oil condition parameters
250–500 h
Sampling interval, in running hours
3
Report colours: normal, watch, action
6
Sectors the programme is built for
Every lab gives data. Tti Labs gives direction.
Long before vibration, heat or an alarm, the oil carries the evidence: wear metals, acid, dust and coolant.
The oil speaks first
Sample every 250–500 running hours, and the trend gives you time to plan.
Wear begins: a defect starts to develop
Oil analysis: wear metals, acid, coolant, dust
Vibration: damage is now mechanical
Noise and heat: an operator can hear or feel it
Alarm or trip: the engine stops itself
Failure
Sudden fractures can outrun any sampling interval. That is why engine makers pair oil analysis with filter inspection and vibration monitoring.
Is the oil still fit?
Oil ages with every running hour. It thickens, loses its acid reserve and picks up water, fuel and coolant.
TAN > TBN. When the acid number crosses the base number, the oil can no longer neutralise the acids attacking your bearings. Change the oil now, whatever the hour meter says.
Change oil on condition
We extend intervals in steps, only when the trend supports it and within the engine maker’s limits.
Which part is wearing
Every component leaves its own signature in the oil.
Pb · Sn · Cu rising together: bearing wear
Cu rising alone: often oil-cooler corrosion, not wear
Fe · Cr: ring and liner wear
Si · Al · Fe: dust getting past the air filter
Na · K: coolant leak, even when a hot gas engine shows no water
Elements by ICP-OES, ASTM D5185. ICP sees particles below about 3 µm. Larger, severe-wear debris needs a PQ ferrous index (ASTM D8184) and filter inspection.
What you get
One colour, one decision.
Green, amber or red at the top of every report, so the shift engineer knows at a glance.
Trends, not snapshots: iron, lead, TBN and more, plotted against running hours.
Root cause in plain words.
What to do, and by when: actions ranked by urgency, judged against your engine maker’s own limits.
WhatsApp alert to your maintenance head on any red result.
How it works
From sample to decision in four steps.
Kits on site: QR-labelled bottles and a one-page sampling procedure, delivered to your plant.
Sample right: hot, running, before the filter. Same point, at your engine maker’s interval.
Tested in 48 h: courier to our Lahore laboratory. ASTM methods; results within 48 hours of receipt.
Act and review: WhatsApp alert on red. Trend review with your team every quarter.
The label is half the analysis
Site and unit ID, engine make and model; oil brand and grade; hours on engine and hours on this oil; top-up since the last sample, in litres; anything unusual.
Built for
Engines, gearboxes, hydraulics, transformers and fuel in one programme.
Engine power plants: furnace-oil, gas and dual-fuel IPPs
Captive and standby: gensets kept ready for load-shedding
Gas compression: field compressors and drivers
Truck and bus fleets: engines, plus fuel quality
Mining: haul trucks and excavators
Process industry: cement, sugar and fertiliser gearboxes and turbines
Independent. We sell no oil, so we have no reason to shorten your drains or defend a brand.
Is the oil still fit to protect the engine?
Oil condition parameters
Question one · oil condition
Parameter
What it shows
Method
Viscosity at 100 °C
Thickens with oxidation and soot, thins with fuel. Is the oil still in its grade?
ASTM D445
Oxidation and nitration
How fast the oil is ageing. The main drain-interval decider in gas engines.
FTIR, ASTM E2412
Base number (TBN)
How much acid-neutralising reserve is left.
ASTM D2896 / D4739
Acid number (TAN)
Acid building up from combustion gases and oxidation.
ASTM D664
Initial pH (i-pH)
Early warning of strong acids. Critical on gas engines.
ASTM D7946
Water
Rust, sludge and bearing damage. Limits are 0.2–0.5% by engine maker.
ASTM D6304 C
Glycol (coolant)
Coolant leaking past a liner seal, gasket or cooler. Act at once.
FTIR + GC
Fuel dilution and soot
Diesel and HFO: injector or combustion faults that thin or load the oil.
ASTM D7593 · TGA
Engine-maker limits and test packages
What the engine makers set
Parameter
Limit
Engine makers
TBN
Change at 50% of the new-oil value
Wärtsilä 34SG · Caterpillar gas engines
TAN
No more than 2.5 mg KOH/g above the new-oil value
Wärtsilä · MTU S4000
i-pH
Minimum 4 to 4.5 on gas engines
MTU · MWM
Water
Maximum 0.2% to 0.5%, by engine
MWM · MTU · Caterpillar · Cummins
Tailored to the machine
Machine
Test package
Gas engines
Wear metals (ICP), viscosity, FTIR oxidation and nitration, TBN, TAN, i-pH, water, glycol
Diesel and HFO engines
As above, plus fuel dilution, soot and insolubles
Truck and bus fleets
Engine package, plus delivered-fuel quality on request
Gearboxes, hydraulics
Wear metals, viscosity, water, TAN, particle count (ISO 4406), ferrous debris
Confirm scope, method edition and price when you order.
Credentials
OGRA-approved third party for petroleum quality control
ISO/IEC 17025 accredited (PNAC Lab 022)
Laboratory in Lahore; offices in Karachi, Faisalabad and Sialkot. Testing since 1995.
Every brand: engines, gearboxes, hydraulics, transformers and fuel in one programme. Your data stays yours.
48 h
Receipt to report
1995
Testing since
4
Steps from sample to decision
Need more details?
Petroleum Division · Oil Condition Monitoring
Before the alarm