Oil and Maintenance Guide for 2010 Honda Rancher AT 420
Before You Service the Engine
Regular maintenance for your 2010 Honda Rancher AT 420 requires using the right lubricant and verifying the level after refilling. Since catalog recommendations may not cover every specific manufacturer requirement, check your service instructions before adding any fluid.
How much oil does a 2010 Honda Rancher AT 420 take?
The engine-oil capacity is listed at 3.8 quarts. Keep in mind that the amount you add during a routine drain might differ from this figure, so follow the proper level-check procedure when refilling.
What does 10W-40 mean on an engine-oil label?
The number preceding the W indicates the oil's low-temperature viscosity grade, and the second number shows its viscosity grade at operating temperature. Ensure your oil also meets the engine manufacturer's specifications.

