Polaris ACE 150 EFI (2018 year). Manual - part 15

64

MAINTENANCE

Lubrication Recommendations

Check and lubricate all components at the intervals outlined in the 

Periodic Maintenance Chart beginning on page 57, or more often 

under severe use, such as wet or dusty conditions. Items not listed in 

the chart should be lubricated at the general lubrication interval.

ŹPerform these procedures more often for vehicles subjected to severe use.

Item

Lube

Method

Engine Oil

36 6\QWKHWLF 

Engine Oil

See page 65.

Brake Fluid 

DOT 4 Brake Fluid

See page 79.

Transmission Oil 

(Main Gearcase)

AGL Gearcase Lubricant 

& Transmission Fluid

See page 67.

Drive Chain

POLARIS Chain Lube or 

SAE 80/90

See page 68.

A-Arm Pivots

POLARIS All Season 

Grease or grease 

conforming to NLGI No. 

2

Grease at general 

lubrication interval, also 

after washing vehicle or 

driving in water.

A-Arm Pivots

65

MAINTENANCE

Engine Oil

Oil Recommendations

Always check and change the engine oil at the intervals outlined in the 

Periodic Maintenance Chart beginning on page 57. POLARIS 

recommends the use of 366\QWKHWLF Engine Oil for this vehicle. 

Mixing brands or using a non-recommended oil may cause serious 

engine damage. Always use the recommended oil. Never substitute 

or mix oil brands.

Oil Check

Maintain the oil level within the safe 

range on the dipstick. Do not overfill.
1. Position the vehicle on a level

surface.

2. Remove the dipstick. Wipe it dry with

a clean cloth.

3. Reinstall the dipstick completely.
4. Remove the dipstick and check the oil

level.

Tip: A rising oil level between checks in cool 

weather driving can indicate contaminants 

such as gas or moisture collecting in the 

crankcase. If the oil level is over the full/

safe mark, change the oil immediately.

5. Add the recommended oil as needed.
6. Reinstall the dipstick.

Dipstick

Full

Add Oil

{

Safe Range

66

MAINTENANCE

Engine Oil

Oil Change

1. Position the vehicle on a level surface. Set the parking brake.
2. Clean the area around the pre-filter plug.
3. Start the engine. Allow it to idle for two to three minutes.
4. Stop the engine.

Hot oil can cause burns to skin. Do not allow hot oil to contact skin.

5. Remove the 4 nuts/bolts holding the lower chain guard in place. Remove 

the lower chain guard to avoid collecting oil as it drains.

6. Place a drain pan under the engine crankcase.
7. Remove the pre-filter plug. Allow the oil to drain completely.
8. Wash the oil pre-filter screen with solvent to remove debris. Allow the 

screen to air dry.

9. The external oil filter is located behind the seat on the right-hand side of 

the rear swingarm. The screw on the oil filter should be replaced when 

oil is changed. With the oil drained from the crankcase, unscrew the oil 

filter and replace with a new one. Ensure that the oil filter gasket is 

properly seated, lubricated with oil and in good condition. Do not over 

tighten the oil filter.

10. Clean the pre-filter plug. Install a new sealing washer on the plug. The 

sealing surfaces on the plug and crankcase should be clean and free of 

burrs, nicks or scratches.

11. Reassemble the pre-filter screen and spring to the pre-filter plug.
12. Reinstall the pre-filter drain plug. Torque to 15 Nm (11 ft-lbs).
13. Reinstall the lower chain guard.
14. Remove the dipstick. Add 1050 ml (35.5 oz.) of the recommended oil. 

Do not overfill. See the specifications section beginning on page 100 for 

capacities.

15. Reinstall the dipstick.
16. Start the engine. Allow it to idle for one to two minutes.
17. Stop the engine and inspect for leaks.
18. Check the oil level. Add oil as needed to bring the level to the upper 

mark on the dipstick.

19. Dispose of used oil properly.

67

MAINTENANCE

Transmission (Main Gearcase)

Always check and change the fluid at the intervals outlined in the 

Periodic Maintenance Chart beginning on page 57. POLARIS 

recommends the use of AGL Gearcase Lubricant & Transmission 

Fluid for this vehicle.

Fluid Check

The fill plug is located on the rear of the gearcase. 

Access the fill plug on the right-hand side of the 

gearcase. 

1. Position the vehicle on a level surface.
2. Remove the fill plug.
3. Check the fluid level.
4. Add the recommended fluid as needed.
5. Reinstall the fill plug.

Fluid Change

The drain plug is located on the bottom of the 

gearcase.
1. Remove the fill plug.
2. Place a drain pan under the drain plug.
3. Remove the drain plug. Allow the fluid to drain completely.
4. Clean the drain plug.
5. Reinstall the drain plug with a new o-ring. Torque to 19 Nm (14

ft-lbs).

6. Add 750 ml (25 oz.) of the recommended fluid to the fill hole.  Do

not overfill.

7. Reinstall the fill plug.
8. Check for leaks.
9. Discard used fluid properly.

Fill Plug

Drain Plug