Poulan Pro 42 Riding Mower Oil Capacity(Correct Capacity)

The Poulan Pro 42″ riding mower is a reliable machine designed for residential and light commercial lawn maintenance. Like any engine-powered equipment, routine oil maintenance is key to keeping it running efficiently and extending its lifespan.

This guide will walk you through the oil capacity, recommended oil types, and best practices for changing oil in your Poulan Pro 42″ mower.

Poulan Pro 42 Riding Mower Oil Capacity

The Poulan Pro 42″ riding mower holds approximately 48 oz (1.4 liters) of oil without an oil filter change and 56 oz (1.65 liters) with a new oil filter. Use SAE 30 oil for warm climates and 5W-30 for cold weather. Change the oil every 50 hours of operation or once per season, and always check the dipstick to avoid overfilling or underfilling.

The additional 8 ounces accounts for the oil retained in the new filter. It’s essential to measure oil carefully and check the dipstick level to avoid overfilling or underfilling.

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Recommended Oil Types and Viscosity

Choosing the right type of engine oil is just as important as maintaining the correct oil level. Poulan recommends using high-quality detergent oil with an API service classification of SG through SL. The oil viscosity should match the climate and temperature conditions where the mower is used.

  • SAE 30: Ideal for warmer temperatures (above 32°F or 0°C)
  • 5W-30: Recommended for colder climates (below 32°F or 0°C)
  • 10W-30: Suitable for moderate temperature ranges, but may be slightly thinner at high temperatures

Make sure not to use oil blends that are not recommended, such as 10W-20, as they may not provide adequate protection.

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How to Change the Oil in a Poulan Pro 42″ Riding Mower

Performing regular oil changes is essential for engine health. Below is a step-by-step guide for changing the oil:

  1. Warm up the engine briefly to help the oil flow more easily.
  2. Park the mower on a level surface and turn off the engine. Allow it to cool slightly.
  3. Locate and open the oil drain valve, allowing the oil to drain completely into a suitable container.
  4. Replace the oil filter if desired. This step will require a slightly higher refill volume.
  5. Close the drain valve securely once all oil has drained.
  6. Refill with fresh oil through the dipstick tube:
    • Add 48 oz if not replacing the filter
    • Add 56 oz if replacing the filter
  7. Check the oil level with the dipstick after a few minutes and top off if necessary.
  8. Start the engine, let it run for a minute, then shut it off and recheck the oil level.

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Maintenance Schedule

To ensure optimal engine performance, follow this oil change schedule:

  • Every 50 operating hours
  • Once per season, even if the mower is not heavily used

You should also check the oil level before each use, especially during the first 8 hours of operation. If using multi-viscosity oil like 5W-30, it’s a good idea to check more frequently, as it may burn off quicker in warm temperatures.

Why Regular Oil Changes Matter

Routine oil changes serve several important purposes:

  • Reduces engine wear by providing adequate lubrication to internal parts
  • Prevents overheating by helping the engine maintain a safe operating temperature
  • Removes contaminants such as dirt, carbon, and metal particles from old oil
  • Improves efficiency and engine responsiveness
  • Preserves warranty coverage by adhering to recommended maintenance practices

Failing to maintain oil properly can lead to engine failure, costly repairs, and voided warranties.

Oil Type Tips

  • 5W-30 is excellent for cold starts, but it may be consumed more quickly in warm weather. Monitor oil levels more often in this case.
  • Stick to API SG-SL oils to ensure compatibility and protection.
  • Avoid outdated or overly thin oil blends unless specifically approved by the manufacturer.
  • Change the oil filter every season, or every second oil change for heavy users (100+ hours/year).

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Common Issues and Troubleshooting

  • Foamy oil usually indicates overfilling. Drain a small amount to bring it within the recommended range.
  • Excessive oil consumption may be due to thin oil viscosity or worn engine components.
  • Engine smoking or sputtering could result from incorrect oil type or contamination.

If you experience unusual engine behavior after an oil change, double-check the filter installation, drain valve closure, and oil level.

Final words

Caring for your Poulan Pro 42″ riding mower begins with proper oil maintenance. Always use the correct oil type, stay within the specified capacity range (48 oz without filter, 56 oz with filter), and follow a consistent oil change schedule.

With just a little attention each season, your mower will deliver years of dependable performance.

Let this guide serve as your go-to resource the next time you’re preparing for seasonal maintenance or troubleshooting oil-related issues.

George Bill
George Bill

George Bill is a Mechanical Engineer by Profession and an avid gardener and has been mowing his lawn for over 20 years. He has used a variety of different mowers during this time.
George is an expert at maintaining his mowers and over the years, he has learned many tricks and techniques for getting the best results from his mowers and is always happy to share his knowledge on this site.