The Lister Petter LPWG4 is a 1.8 L 4-cylinder naturally aspirated engine. It powers generator sets from Lister Petter, including the GS15N. It holds 5.49 L (1.5 gal) of oil and 70 L (18.5 gal) of coolant.
Also known as: Lister Petter LPWG4
| Oil capacity | 5.49 L |
|---|---|
| Coolant capacity | 70.0 L |
| Displacement | 1.8 L |
| Cylinders | 4 |
| Aspiration | Naturally aspirated |
| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | — | ||||
| Fuel filter | — | ||||
| Oil filter | — | ||||
| Oil | Recommended oil change @ ambient temp. | 5.49 L | — | 250 hr |
Pooled from every document that names this exact engine — confirm the interval and part number against your unit's serial number.
| Item | Action | Hours | Months | Notes |
|---|---|---|---|---|
| Engine oil | Change | 250 hr | Recommended oil change at ambient temp up to 95 °F (35 °C) |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
| Type | Item | Value | Unit | Condition |
|---|---|---|---|---|
| Other | Altitude de-rating | 3.5 | % per 1000 ft | above 500 ft |
| Other | Bore | 3.38 (86) | inches (mm) | |
| Other | Compression ratio | 9.5:1 | ||
| Other | Firing order | 1-3-4-2 | ||
| Other | Humidity de-rating | up to 10 | % | depending on the ambient temperature |
| Other | Steady regulation (electronic) | ±.025 | % | |
| Other | Stroke | 3.15 (80) | inches (mm) | |
| Other | Telephone influence factor (TIF) | Less than 50 | ||
| Other | Temperature de-rating | 2 | % per 10 °F | above 77 °F |
| Other | Total harmonic factor | Less than 2 | % | |
| Pressure | Fuel inlet pressure | 6" - 14" | water | |
| Pressure | Maximum air-restriction | 10 | inH2O | also 254 mmH2O |
| Pressure | Maximum back pressure | 15 | inH2O | also 381 mmH2O |
| Speed | Governor frequency regulation, no load to full load | 0.5 | % | standard electronic governor |
| Temperature | Alternator temperature rise | 125 | °C | |
| Temperature | Exhaust temperature | 1000 | °F | standby rating; also 540 °C |
| Temperature | Exhaust temperature | 909 | °F | prime power rating; also 488 °C |
| Voltage | Voltage regulation | 2 | % | all loads to 100% |
| Voltage | Volts change 100% load step | Under 3 | % | ¼ sec |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
| Fluid | Grade | Standard | Ambient | Capacity | Notes |
|---|---|---|---|---|---|
| Fuel | Natural gas | Nominal 1037 BTU/FT3; specific gravity 0.601; fuel inlet pressure 6" - 14" water; combustion spark ignition |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
The Lister Petter LPWG4 engine has an oil capacity of 5.49 liters.
The Lister Petter LPWG4 has a displacement of 1.8 liters with 4 cylinders.
The Lister Petter LPWG4 powers 1 generator set(s), including Lister Petter GS15N.
The Lister Petter LPWG4 oil change interval is every 250 hours.