Hyundai Elantra (CN7): Lubrication System / Engine Oil

Hyundai Elantra (CN7) 2021-2025 Service Manual / Engine Mechanical System / Lubrication System / Engine Oil

Repair procedures

Replacement
   
•
Prolonged and repeated contact with mineral oil will result in the removal of natural fats from the skin, leading to dryness, irritation and dermatitis. In addition, used engine oil contains potentially harmful contaminants which may cause skin cancer.
•
Exercise caution in order to minimize the length and frequency of contact of your skin to used oil. Wear protective clothing and gloves. Wash your skin thoroughly with soap and water, or use water-less hand cleaner, to remove any used engine oil. Do not use gasoline, thinners, or solvents.
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In order to preserve the environment, used oil and used oil filter must be disposed of only at designated disposal sites.
1.
Drain the engine oil.
(1)
Remove the oil filler cap (A).

(2)
Remove the oil drain plug (A), and drain the oil into a container.

2.
Replace the oil filter.
(1)
Remove the safety pin (A).

(2)
Remove the pre-drain plug (A) by rotating it by 90° and then drain the engine oil in the oil filter.

(3)
Using the socket wrench, remove the oil filter cap (A).

(4)
Replace the new o-ring (A) on the oil filter cap.

   
•
Always use a new O-ring.
•
Wipe off the oil and foreign substances remaining inside the filter housing, threads and cover cap threads as much as possible.
※ If the residual oil is not removed, it may leak between the cover cap and the housing mating surfaces, which can be mistaken for oil leakage. (The amount of leaking oil and the leaking period may differ depending on the amount of residual oil)
(5)
Install the new oil filter (A).

   
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When install the oil filter, apply engine oil to the drain plug O-ring (A).

•
Must use the drain plug (A) that is installed in a new oil filter.

(6)
Rotate the free drain plug (A) by 90° so that the drain pin is in the locked position.

(7)
Install the new safety pin (A).

   
•
Always use a new safety pin.
(8)
Lightly tighten the O-ring of the oil filter cap until it contacts with the installed surface, then tighten the oil filter cap (A) to the specified torque using a socket wrench..
Tightening torque :
34.3 N.m (3.5 kgf.m, 25.3 lb-ft)

   
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Always use a new O-ring.
•
When install the oil filter cap, Check if the new o-ring (A) is installed correctly the cap.
•
When install the oil filter cap, apply engine oil to the new O-ring (A).

•
Assemble the drain plug to the specified torque using a torque wrench.
※ When manually assembling the drain plug using a hexagonal wrench, it may result in the damage to the drain plug or leakage due to the failure to comply with the specified torque.
3.
Refill with engine oil.
(1)
Install the oil drain plug (A) with a new gasket.
Tightening torque :
34.3 - 44.1 N.m (3.5 - 4.5 kgf.m, 25.3 - 32.5 lb-ft)

(2)
Fill with fresh engine oil.
Capacity
Total : 5.0 L (1.32 U.S.gal., 5.28 U.S.qt., 4.4 lmp.qt.)
Oil pan : 4.4 L (1.16 U.S.gal., 4.65 U.S.qt., 3.87 lmp.qt.)
Drain and refill including oil filter :
4.8 L (1.27 U.S.gal., 5.07 U.S.qt., 4.22 lmp.qt.)
(3)
Install the oil filler cap (A).

4.
Engine and check for oil leaks.
5.
Recheck the engine oil level.
Inspection
Engine Oil
1.
Check the engine oil quality.
Check the oil deterioration, entry of water, discoloring of thinning.
If the quality is visibly poor, replace the oil.
2.
Check the engine oil level.
After warning up the engine and then 10 minutes after the engine stop, oil level should be between the "L" and "F" marks in the dipstick.
If low, check for leakage and add oil up to the "F" mark.
   
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Do not fill with engine oil above the "F" mark.
•
Check the oil level gauge, based on a condition in which the engine oil temperature is a room temperature (20°C – 25°C).
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Make sure the tire pressure falls within the normal range.
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When measuring engine oil, make sure the road surface is even.
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After draining engine oil, make sure you check the total amount of drained oil before injection.
Selection of Engine Oil
Specification : SAE 0W-20, API SN PLUS (or above grade)
Allowed oil SAE viscosity : Refer to the recommended SAE viscosity number

    Engine oil flow diagram

    Components and components location Components1. Oil pan2. Oil drain plug gasket3. Oil drain plug Repair procedures Removal1.Remove the engine room under cover.

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