What Type of Oil Does a 2013 Polaris Scrambler XP 850 H.O. EPS Take?

What Type of Oil Does a 2013 Polaris Scrambler XP 850 H.O. EPS Take?

Shop parts for a 2013 Polaris Scrambler XP 850 H.O. EPS ATV.

The 2013 Polaris Scrambler XP 850 H.O. EPS sits in an interesting spot in the lineup. It carries the big-bore 850 twin, electronic power steering, and all-wheel drive, but it wears sportier bodywork and a more aggressive stance than the pure work machines. Underneath, though, it is still a four-stroke utility ATV with a belt-driven continuously variable transmission, and that combination determines almost everything about the oil it wants. If you are standing in the oil aisle trying to figure out what to pour in, here is the practical picture.

Engine Oil Viscosity for a Big-Bore Utility Twin

Four-stroke utility ATVs in the 800cc-and-up class almost universally run a multi-viscosity powersports oil rather than anything you would grab off a car shelf. The most commonly cited weights across this category are 10W-40 and 5W-40, and several big-bore twins — including the 850cc Polaris platform — are frequently associated with a heavier hot-weather grade such as 5W-50. That heavier second number matters on a large, liquid-cooled twin that spends its life at low ground speed with high engine load.

Temperature drives the choice as much as displacement does. In cold climates, a lower first number such as 0W-40 or 5W-40 flows more readily on a frosty morning and reaches the top end faster. In consistently hot conditions, or on machines that work hard in summer heat, a 20W-50 or 5W-50 is sometimes listed as an acceptable alternative. The right answer for your specific quad depends on the chart in your owner's manual, which pairs viscosity to ambient temperature. Treat the manual's chart as the final word and the ranges above as the neighborhood you are shopping in.

Why the CVT and Wet Clutch Change the Oil Conversation

The Scrambler XP 850 uses a Polaris-style PVT, a belt-driven automatic that runs the belt dry, in its own housing, completely separate from the engine oil. That is good news in one sense: you are not asking engine oil to also lubricate a belt. But it does not mean any ordinary motor oil will do.

Inside that same powertrain there are wet clutch elements and a gearcase that share lubrication with the engine on this platform, and that is the detail that matters most when you pick a bottle. Oils formulated for cars often contain friction modifiers designed to help automatic transmissions slip smoothly. In a powersports application with a wet clutch, those same additives can cause clutch slip and glazing. The industry answer is a JASO MA or MA2 rated oil, which is specifically formulated to be wet-clutch compatible. Look for that rating on the label before anything else.

Polaris also sells its own branded powersports oil formulated for these engines, and following the manufacturer's own recommendation is a sound default when you are not sure. It removes the guesswork entirely.

Drivetrain Fluids Are a Separate Service

One of the most common mistakes on a four-wheel-drive utility quad is assuming that fresh engine oil covers the whole machine. It does not. This ATV has multiple lubricant reservoirs, each with its own fill and drain, and each serviced on its own schedule.

• Front differential or gearcase: On models with an automatic engagement system, this unit often calls for a model-specific front drive fluid rather than a generic gear oil. Using the wrong fluid here can affect how — or whether — all-wheel drive engages.
• Rear gearcase or final drive: Typically a hypoid gear oil in the 80W-90 range, though the exact grade varies.
• Transmission gearcase: Some Polaris platforms run a separate transmission fluid reservoir distinct from the engine sump.

None of these are topped off with engine oil, and none of them are checked by looking at the dipstick. If you are doing a full fluid refresh, plan on three or four different bottles, not one.

Conventional or Synthetic?

Both will work, and the decision usually comes down to how you use the machine. Synthetic oil holds up better under sustained heat and resists viscosity breakdown during long, slow, loaded pulls — exactly the duty cycle a plowing or towing quad sees. It also flows more readily at cold startup, which reduces wear on the first few seconds after you turn the key.

Conventional oil costs less and remains perfectly serviceable for a rider who mostly trails at moderate pace and changes oil on schedule. Semi-synthetic sits in the middle and is a reasonable compromise for mixed use. Whichever you choose, the JASO rating and the correct viscosity matter more than the base stock.

How Hard Work and Weather Affect Your Oil

Plowing, towing, mud, deep water crossings, and long idle periods are all harder on oil than a casual afternoon ride. Heat and contamination accumulate faster, and the oil's additive package depletes sooner. Water and mud intrusion is a particular concern on a machine that fords creeks — if the oil comes out milky or tan rather than dark and translucent, water has gotten in, and that fluid needs to come out promptly regardless of mileage.

Dust and fine grit from dry, silty trails do the same thing from the other direction. Severe-service use generally justifies shortening your change interval rather than stretching it, and cold-weather riding is the main reason to favor the lower first number in a multigrade.

Confirming the Exact Spec for Your Machine

Everything above describes the industry-typical range for this class of ATV, and it will get you to the right shelf. For the precise viscosity, the exact capacity, and the specific fluid types for the front gearcase, rear gearcase, and transmission on your 2013 Scrambler XP 850 H.O. EPS, a quick look at the owner's manual settles it in about two minutes. Your dealer can confirm the same information if the manual has wandered off. Get the numbers, write them somewhere you will find them, and the next oil run becomes a five-minute errand instead of a research project.

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Disclaimer: This guide is provided for general informational purposes only and is not intended to replace your ATV's official owner's manual. Always refer to your manufacturer's documentation for model-specific instructions, torque specifications, safety procedures, and maintenance requirements. If you are unsure or inexperienced, consider seeking assistance from a qualified mechanic or technician.