Since Murray mowers have been produced with multiple engine brands and sizes over the years, oil capacity varies widely by model and engine type.
This guide provides a complete Murray lawn mower oil capacity chart covering push mowers, self-propelled units, riding lawn tractors, and zero-turn mowers. Whether you own an older Briggs & Stratton–powered Murray or a newer riding mower, this reference will help you add the right amount of oil every time.
Murray Lawn Mower Oil Capacity Chart
Murray Push & Self-Propelled Lawn Mowers
| Murray Model / Series | Engine Brand | Engine Size (cc) | Oil Capacity (oz) | Oil Capacity (qt) | Oil Capacity (L) |
|---|---|---|---|---|---|
| Murray 20” Classic Push | Briggs & Stratton | 125cc | 15 oz | 0.47 qt | 0.44 L |
| Murray 21” Push | Briggs & Stratton | 140cc | 15 oz | 0.47 qt | 0.44 L |
| Murray 21” Steel Deck | Briggs & Stratton | 150cc | 18 oz | 0.56 qt | 0.53 L |
| Murray 22” Push | Briggs & Stratton | 150cc | 18 oz | 0.56 qt | 0.53 L |
| Murray 450 Series | Briggs & Stratton | 148cc | 15 oz | 0.47 qt | 0.44 L |
| Murray 500 Series | Briggs & Stratton | 158cc | 18 oz | 0.56 qt | 0.53 L |
| Murray 550 Series | Briggs & Stratton | 160cc | 18 oz | 0.56 qt | 0.53 L |
| Murray 575EX Series | Briggs & Stratton | 163cc | 18 oz | 0.56 qt | 0.53 L |
| Murray 625 Series | Briggs & Stratton | 190cc | 20 oz | 0.63 qt | 0.59 L |
| Murray Self-Propelled 21” | Briggs & Stratton | 160cc | 18 oz | 0.56 qt | 0.53 L |
| Murray High-Wheel 22” | Briggs & Stratton | 163cc | 18 oz | 0.56 qt | 0.53 L |
| Murray Side Discharge Push | Briggs & Stratton | 140cc | 15 oz | 0.47 qt | 0.44 L |
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Murray Riding Lawn Mowers (Single-Cylinder Engines)
| Murray Riding Model | Engine Brand | Horsepower | Oil Capacity (qt) | Oil Capacity (L) |
|---|---|---|---|---|
| Murray 10.5 HP Rider | Briggs & Stratton | 10.5 HP | 1.4 qt | 1.32 L |
| Murray 11 HP Rider | Briggs & Stratton | 11 HP | 1.4 qt | 1.32 L |
| Murray 12.5 HP Rider | Briggs & Stratton | 12.5 HP | 1.5 qt | 1.42 L |
| Murray 13 HP Rider | Briggs & Stratton | 13 HP | 1.5 qt | 1.42 L |
| Murray 13.5 HP Rider | Briggs & Stratton | 13.5 HP | 1.5 qt | 1.42 L |
| Murray 14 HP Rider | Briggs & Stratton | 14 HP | 1.5 qt | 1.42 L |
| Murray 14.5 HP Rider | Briggs & Stratton | 14.5 HP | 1.5 qt | 1.42 L |
| Murray 15 HP Rider | Briggs & Stratton | 15 HP | 1.5 qt | 1.42 L |
| Murray 15.5 HP Rider | Briggs & Stratton | 15.5 HP | 1.5 qt | 1.42 L |
| Murray 17 HP Lawn Tractor | Briggs & Stratton | 17 HP | 1.9 qt | 1.80 L |
| Murray 17.5 HP Lawn Tractor | Briggs & Stratton | 17.5 HP | 1.9 qt | 1.80 L |
| Murray 18 HP Lawn Tractor | Briggs & Stratton | 18 HP | 2.0 qt | 1.90 L |
| Murray 18.5 HP Lawn Tractor | Briggs & Stratton | 18.5 HP | 2.0 qt | 1.90 L |
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Murray Riding Lawn Mowers (V-Twin Engines)
| Murray Riding Model | Engine Brand | Horsepower | Oil Capacity (qt) | Oil Capacity (L) |
|---|---|---|---|---|
| Murray 20 HP Lawn Tractor | Briggs & Stratton | 20 HP | 2.0 qt | 1.90 L |
| Murray 21 HP Lawn Tractor | Briggs & Stratton | 21 HP | 2.0 qt | 1.90 L |
| Murray 22 HP Lawn Tractor | Briggs & Stratton | 22 HP | 2.0 qt | 1.90 L |
| Murray 23 HP Lawn Tractor | Briggs & Stratton | 23 HP | 2.1 qt | 2.00 L |
| Murray 24 HP Lawn Tractor | Briggs & Stratton | 24 HP | 2.1 qt | 2.00 L |
| Murray 25 HP Lawn Tractor | Briggs & Stratton | 25 HP | 2.1 qt | 2.00 L |
| Murray 26 HP Lawn Tractor | Briggs & Stratton | 26 HP | 2.2 qt | 2.10 L |
| Murray 27 HP Lawn Tractor | Briggs & Stratton | 27 HP | 2.2 qt | 2.10 L |
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Murray Zero-Turn Lawn Mowers
| Murray Zero-Turn Model | Engine Brand | Deck Size | Oil Capacity (qt) | Oil Capacity (L) |
|---|---|---|---|---|
| Murray 42” Zero-Turn | Briggs & Stratton | 42 in | 2.0 qt | 1.90 L |
| Murray 44” Zero-Turn | Briggs & Stratton | 44 in | 2.0 qt | 1.90 L |
| Murray 46” Zero-Turn | Briggs & Stratton | 46 in | 2.1 qt | 2.00 L |
| Murray 48” Zero-Turn | Briggs & Stratton | 48 in | 2.1 qt | 2.00 L |
| Murray 50” Zero-Turn | Briggs & Stratton | 50 in | 2.1 qt | 2.00 L |
| Murray 52” Zero-Turn | Briggs & Stratton | 52 in | 2.2 qt | 2.10 L |
| Murray 54” Zero-Turn | Briggs & Stratton | 54 in | 2.2 qt | 2.10 L |
| Murray Commercial ZTR | Briggs & Stratton | 60 in | 2.3 qt | 2.20 L |
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How to Check Oil Level on a Murray Lawn Mower
Even with correct capacity data, the oil level should always be verified manually.
- Park the mower on level ground
- Turn the engine off and let it cool
- Remove the dipstick
- Wipe it clean
- Reinsert fully (do not screw in unless specified)
- Remove and check the oil level
Oil should sit between the ADD and FULL marks.
Common Mistakes When Filling Murray Mower Oil
- Filling to capacity without checking the dipstick
- Using the wrong engine size reference
- Overfilling after an oil filter change
- Mixing oil types without draining the old oil
- Checking oil immediately after shutdown (oil hasn’t settled)
Avoiding these mistakes helps prevent smoking, rough idle, and oil consumption issues.
Final Thoughts
The correct Murray lawn mower oil capacity depends entirely on engine size and mower type, not just the mower’s deck width or model name. Push mowers generally require 15–20 ounces, while riding and zero-turn mowers typically need 1.5–2.3 quarts of oil.
Using the tables above ensures accurate oil filling, better engine protection, and longer mower life. Always confirm oil level with the dipstick after adding oil, and when in doubt, add oil gradually.
