Maintaining the optimal oil level in the engine is the key to its long and stable operation. Even the most reliable power unit wears out faster if the oil is at a minimum. That is why every driver should know how to properly add oil to the engine, whether it is a modern sedan, an old "classic" or a foreign car.

When topping up is required

It is advisable to check the oil level every 1–2 thousand kilometers, as well as before a long trip. If the dipstick shows that the level has dropped below the average mark, you should think about how to properly add oil to the car engine. The following signs may indicate a shortage:
  • The oil pressure indicator lights up on the dashboard.
  • Unusual noises or knocks are heard.
  • The oil level on the dipstick has dropped below the minimum mark.

Step-by-step instructions for adding oil

  1. Place the car on a level surface and turn off the engine. Let the engine sit for 5–10 minutes so that the oil drains into the oil pan.
  2. Open the hood and find the filler neck — usually its cap is marked with an oil can symbol.
  3. Check the level using the dipstick: pull it out, wipe it dry, put it back, and remove it again for an accurate measurement.
  4. Choose the appropriate oil — if you know the brand and viscosity of the oil that was poured, use the same. If not, read below about how to add oil to the engine if you don't know what was in it.
  5. Add the oil in small portions (100–200 ml each), checking with the dipstick each time to avoid overfilling.
  6. Tighten the cap securely and check for any leaks.

If you don't know what oil is in the engine

Sometimes you need to top up urgently, but there is no data on the previous oil. Then the question arises: how to add oil to the engine if you don't know what was in it?
  • In an emergency, you can use any motor oil with a viscosity suitable for the season (for example, 5W-40 or 10W-40).
  • At the first opportunity, you should completely replace the oil.
  • Do not leave a mixture of "mineral" and "synthetic" oil for a long time — this reduces the engine's lifespan.

Nuances of topping up on common models

  • How to add oil to the engine of a VAZ 2110 — the filler neck is conveniently located, the dipstick is easy to reach, and for a full replacement, about 3.5–3.7 liters of oil is needed.
  • How to add oil to the engine of a VAZ 2107 — "classic" engines are often prone to oil consumption, so it is better to check the level more often.
  • How to add oil to the engine of a VAZ 2109 — access is the same, but it is important to keep everything clean so that dust does not get inside.
  • How to add oil to the engine of a VAZ 2115 — use oils recommended by the manufacturer and avoid overfilling.
  • How to add oil to the engine of a VAZ 2114 — the procedure is the same as for other "Samaras", but you should check whether the seals are leaking.
  • How to add oil to the engine of a Lanos — the filler neck is easily accessible, but it is preferable to use 10W-40 oil.
  • How to add oil to the engine of a Lacetti — modern engines are demanding on oil quality, so you should only add oils that meet GM specifications.

Recommendations for safe topping up

  • Do not pour oil "by eye" — always check with the dipstick.
  • Do not mix oils of different API classes unless absolutely necessary.
  • Always carry a liter can of oil in the trunk.
Summary: now you know how to properly add oil to the car engine, whether it is a VAZ 2107, 2109, 2110, 2114, 2115, Lanos or Lacetti. Regular level checks and proper topping up give you confidence that the engine will last longer and won't let you down on the road.