The 2012 Honda Foreman 500 requires 10W-40 4-stroke motorcycle engine oil. Honda’s own GN4 10W-40 is the typical recommended brand, but any high-quality 10W-40 motorcycle oil that meets API standards and is compatible with a wet-clutch system can be used.
Oil specifications for the Foreman 500
To keep the engine and transmission running smoothly, it's important to choose an oil that is designed for four-stroke motorcycle use and for a wet-clutch system. Below are the commonly accepted options and guidelines.
Recommended oil types
- Honda GN4 10W-40 motorcycle oil (classic recommendation from Honda)
- Other 10W-40 four-stroke motorcycle oils that meet API SN/SM (or newer) and JASO MA/MA2 ratings
- Synthetic 10W-40 or conventional 10W-40, as long as it is explicitly rated for wet-clutch motorcycles
Before listing options, note that the Foreman’s oil serves both the engine and the transmission, so select a motorcycle-specific oil that is designed for wet clutches.
In practice, choose a reputable 10W-40 oil labeled for motorcycles or ATVs with a wet clutch. Avoid car motor oils that aren’t rated for motorcycles or that use friction modifiers not compatible with wet clutches.
Maintenance specifics: capacity and intervals
Understanding the oil capacity and change schedule helps ensure you don’t overfill or miss a service window. The Foreman 500 uses engine oil that also lubricates the clutch, so regular changes matter.
Oil capacity and replacement interval
- Engine oil capacity with filter change: about 2 quarts (roughly 1.9 liters)
- Recommended change interval: typically every 50 hours of use or about once a year, whichever comes first (follow Honda’s official maintenance schedule for your exact model and climate)
- Oil filter: replace at every oil change, and top up to the full mark after replacing the filter
Keeping to a regular change schedule and using the right oil type helps maintain clutch performance, engine longevity, and overall reliability of the Foreman 500.
Summary
For a 2012 Honda Foreman 500, use a 10W-40 motorcycle oil that is suitable for wet clutches. Honda GN4 10W-40 is a common standard, but high-quality 10W-40 oils meeting API SN/SM and JASO MA/MA2 are acceptable. Plan on roughly 2 quarts per oil change with a new filter, and follow a maintenance schedule around every 50 hours or a yearly interval, whichever comes first. Always refer to the owner’s manual for model-specific recommendations and climate considerations.