The Honda Foreman typically holds about 2 quarts (1.9 L) of engine oil when the oil filter is installed. Exact capacity varies by model and year, so check the owner's manual or service data for your specific VIN.
In this article, we outline the typical engine oil capacities you’re likely to encounter on Foreman ATV models, explain how to fill to the correct level, and note other oil-related considerations such as the separate gear/drive oil that some models also require.
Common engine oil capacity for Foreman models
Below are typical figures cited by Honda for common Foreman engines. Use these as a guide; verify the exact specification in your manual or on the data plate on your ATV.
- Engine oil capacity with filter installed: about 2.0 quarts (1.9 L) for most 400–500cc Foreman models.
- Engine oil capacity without filter: typically around 1.8–1.9 quarts (1.7–1.8 L).
- Some late-model 500cc Foreman engines list a capacity of about 2.1 quarts (2.0 L) with filter; confirm for your exact model/year.
Note: The Foreman also has a separate oil fill for the transmission/gear case in some configurations. This article focuses on engine oil capacity, so total oil in the vehicle may differ if you are changing multiple sumps. Always refer to the owner’s manual for the complete lubrication specification.
How to check and refill the engine oil
Before checking, run the engine to warm it up, then park on level ground and turn off. Allow a few minutes for the oil to settle, then check the level using the dipstick or oil level window. Add oil in small increments until the level reaches the full mark, rechecking after a short idle. Do not overfill, as that can cause foaming and high pressure.
Use the recommended oil grade and a new filter when you perform a change. After adding oil, run the engine briefly, recheck, and top off if necessary.
Summary
In typical Honda Foreman models, engine oil capacity is around 2.0 quarts (1.9 L) with the filter installed, with slight variation by year and trim (up to about 2.1 quarts in some 500cc versions). Always verify using your owner's manual or the service data for your exact model, and remember to consider any separate oil needs for the transmission/gear case.