Oil and Maintenance Guide for 2011 Yamaha Grizzly 350 Auto 4x4 IRS/IH 350
Before You Service the Engine
For the 2011 Yamaha Grizzly 350 Auto 4x4 IRS/IH 350, planning an engine service involves checking the correct lubricant application and following the proper refill procedure. A catalog recommendation is a starting point rather than proof of every manufacturer requirement; consult the correct service instructions before adding fluid.
What type of oil does a 2011 Yamaha Grizzly 350 Auto 4x4 IRS/IH 350 take?
The engine-oil viscosity shown for this model is 10W-40. The available oil-product listings include 10W-40 Synthetic ATV/UTV Engine Oil, Formula 4-Stroke Power Sports Synthetic Motor Oil. For a service, choose oil that meets the engine’s actual application requirements, not just a product name.

