Brute Force 650 Oil Change: 1.85 qts. Capacity

This article explains how to change oil on a Brute Force 650, including tools needed, the oil capacity and a free "how to" video.  Our demonstration was preformed on a 2013 BF, but will work for all year models of the Brute Force 650 and the older Prairie 650.  Before getting started make sure to have the following on hand: 17mm socket, oil drain pan, 2 quarts of oil and oil filter.

Begin by warming the engine up, either driving it around or letting it idle until the fan kicks on.  Next remove the 17mm oil drain plug, located near the center of the middle skid plate.  Let the oil drain completely, it may take 10-15 minutes.  Next remove the automotive style oil filter, located on front of the engine, turn it counter clockwise to remove.  Next reinstall the 17mm drain plug and oil filter.  We installed a Wix 51358 oil filter for this Brute Force 650.  You will now need to fill the engine with 1.85 quarts of oil.  Many folks have their own preference of oil and the chart is recommendations from the Owner's Manual.

Polaris Ranger front Differential Fluid Change: 9.3 oz Fluid Capacity

Changing the front diff fluid on the Ranger 800 is a quick and easy job.  The most difficult part is of the entire job is removing the fill plug on the front of the diff.  The oil change is relatively mess free due to the low 9.3 oz. fluid capacity.  Before getting started make sure to have a 8mm allen wrench and Polaris Demand Drive Hub Fluid or Polaris Angle Drive Fluid on hand.  Lots of discussion out there on using different brands such as Amsoil and fluid variations such as automatic transmission fluid and hydraulic fluid in the front differential gearcase on these Rangers.  You can do you're own research on that, but many swear by these alternatives.
Begin the process by driving the Ranger at road speeds for 15 minutes or more to warm the fluid up making the drain process quicker and more complete.  Next remove the 8mm drain plug with the allen wrench, there is a hole in the front skid plate for access.  As the fluid drains remove the fill plug located on front of the differential, you can do this without removing plastics.  Once fluid is drained reinstall the drain plug.  To fill you can attach a hose to the top of the Polaris Demand Drive Hub Fluid or Angle Drive Fluid nozzle and plumb it into the fill hole or use a funnel with hose, just be creative.  Others have filled the front diff by pouring fluid down the vent hose under the hood.  I've attached the video of our fluid change, but to be honest it was early on and not the best.

Polaris Ranger 800 Transmission Rear Differential or Main Gearcase Oil Change: Capacity 1.1 Quart or 34 Oz.

The 2010 Polaris Ranger 800 transmission and rear diff oil run in what Polaris refers to as the main gearcase on the Rangers and oil capacity is relatively small at  34 oz. or 1.1 qt. AGL Fluid.  This oil change is relatively quick, but is messy and awkward getting to the drain plug and fill plug.  Removing the rear passenger side tire would allow better access to the plugs.  This article and the free video explains how to change the oil.

Before you get started make sure to have whats needed to complete the job.
- 8mm allen wrench    - 1.1 qt Polaris AGL Fluid    - oil catch pan   -flexible funnel or hose   - rags  

Before removing the drain plug on your Ranger drive it around for 15 minutes or longer to heat the transmission-rear diff or main gearcase oil.  Now remove the oil Drain Plug with a 8 mm allen Wrench and attempt to catch as much oil as possible.  This part made a mess on our Ranger 800 skid plate.  After draining remove the Fill Plug with the 8mm allen wrench.  The tricky part is getting the new oil back into the gearcase.  Some have claimed to fill through the vent hose, but we filled through the Fill Plug opening.  Our AGL Fluid came with a nozzle that was applied after removing the cap and breaking the seal.  After installing the nozzle we cut the tip and placed a foot piece of clear hose on it to feed into the case.  Our Polaris Ranger 800 used 1 quart, although specs claimed 1.1 quarts.