When it comes to maintaining your Troy-Bilt TB110 lawn mower, knowing the correct TB110 engine oil capacity is essential for peak performance and long engine life.
In this post, we’ll break down everything you need to know about the TB110 engine oil capacity, proper oil change steps, and pro tips to get the most out of your mower.
TB110 Engine Oil Capacity
The standard TB110 engine oil capacity is 15 to 20 fluid ounces (0.47 to 0.59 liters), depending on the exact model and engine configuration. Most TB110 units use SAE 30 motor oil for optimal performance during warmer temperatures.
| Component | Specification |
|---|---|
| Oil Capacity | 15–20 fl. oz (0.47–0.59 L) |
| Recommended Oil | SAE 30 (above 40°F) |
| Alternative Oil | SAE 10W-30 (all-temperature use) |
| Oil Change Interval | Every 25 hours or annually |
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TB110 Lawn Mower Engine
The Troy-Bilt TB110 is a popular push lawn mower equipped with a Briggs & Stratton 140cc engine, commonly known for its reliability and ease of use. This mower features:
- A Prime N Pull™ starting system
- A TriAction™ cutting system for better grass management
- A durable steel deck
- Rear high wheels for improved maneuverability
With all these components working together, the engine is the heart of the operation, and keeping it lubricated with the right amount of oil is non-negotiable.
Why Engine Oil Capacity Matters
Using the correct oil capacity ensures the engine is adequately lubricated. Too little oil leads to friction and overheating. Too much oil can flood the crankcase, causing smoke or damaging engine seals.
By keeping oil within the recommended range, you maximize the efficiency, fuel economy, and lifespan of your TB110 lawn mower.
Related Briggs and Stratton Engine Oil Capacity Chart(For All Models)
How to Check and Fill TB110 Engine Oil
Checking and adding oil to the TB110 is a simple process, but doing it right ensures your mower stays in top shape.
1. Prepare the Mower
- Place the mower on a flat surface.
- Allow the engine to cool down if it was running.
- Gather a clean rag, funnel, and your engine oil.
2. Locate the Oil Fill Cap/Dipstick
- Unscrew the oil fill cap, typically marked with a symbol or labeled.
- Wipe the dipstick clean with the rag.
3. Check the Oil Level
- Reinsert the dipstick fully, then pull it out.
- Oil should fall within the “Full” and “Add” lines.
- If it’s low, proceed to top it off.
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4. Add the Oil
- Use a funnel for precision.
- Add small amounts at a time.
- Pause and recheck the level until you’re within range.
5. Reattach the Dipstick
- Screw the cap back tightly and clean any spills.
When to Change the Oil
Changing the oil in your TB110 is crucial, especially after the first 5 hours of use (break-in period), and then every 25 hours of operation or once a season.
Signs It’s Time to Change the Oil
- Dark, gritty, or thickened oil
- Engine sounds louder than usual
- Smell of burning oil
- Poor mower performance
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How to Change TB110 Engine Oil
Here’s a quick guide to changing the oil in your Troy-Bilt TB110:
1. Warm Up the Engine
- Run it for a few minutes to loosen debris and make oil draining easier.
2. Drain the Oil
- Tilt the mower (carburetor side up) and drain the oil from the fill tube into a container.
- Alternatively, use an oil extractor if available.
3. Replace Oil Filter (if equipped)
- Some variants may have a small internal filter—check your manual.
4. Refill with Fresh Oil
- Use a funnel to pour up to 20 fl. oz. of fresh SAE 30 oil.
- Check the dipstick frequently to avoid overfilling.
5. Run and Recheck
- Start the mower and let it run for 1–2 minutes.
- Turn it off and recheck oil level to top up if needed.
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Tips for Maximizing TB110 Engine Life
- Store in a dry, shaded area to avoid oil breakdown from temperature fluctuations.
- Use high-quality oil from trusted brands like Briggs & Stratton or Mobil 1.
- Clean the air filter regularly to reduce engine stress.
- Sharpen blades to prevent strain from dull cutting.
- Drain fuel and oil before winter storage to prevent gumming and corrosion.
Common Mistakes to Avoid
- Overfilling oil – This can cause white smoke or engine seal damage.
- Using old or incorrect oil types – Thick or degraded oil reduces performance.
- Skipping oil changes – This leads to sludge build-up and potential engine seizure.
- Not checking the dipstick properly – Always insert it fully for accurate readings.
Final Words
Knowing the exact TB110 engine oil capacity and following best practices for oil maintenance can make a big difference in the lifespan and performance of your Troy-Bilt mower. Stick to the recommended 15 to 20 oz. of SAE 30 oil, check it regularly, and change it at the suggested intervals. With proper care, your TB110 will stay reliable, efficient, and ready for every mow.
