Oil and Maintenance Guide for 2008 Honda TRX 420 FA/FPA Fourtrax / Rancher AT 420
Before You Service the Engine
When servicing the engine on a 2008 Honda TRX 420 FA/FPA Fourtrax / Rancher AT 420, verify you have the correct lubricant and follow the proper refill steps. Use the specific level-check method for this machine and confirm the product is suitable rather than relying solely on a catalog name.
Transmission and Drivetrain
Gearcase or differential lubricant listings include SEVERE GEARĀ® 75W-90.
How much oil does a 2008 Honda TRX 420 FA/FPA Fourtrax / Rancher AT 420 take?
The engine oil capacity is listed at 3.8 quarts. Since the amount replaced during a routine drain might differ from this total, use the correct level-check procedure when refilling.
Which transmission or differential lubricant is listed for a 2008 Honda TRX 420 FA/FPA Fourtrax / Rancher AT 420?
For the gearcase or differential, use SEVERE GEARĀ® 75W-90. Check that you are adding fluid to the correct compartment and meeting the required specifications.

