Just keep an eye on it, if it continues to use oil then it isnt normal. I filled mine with a whole container of the recommended Renault Evolution oil and mine was still down from the max mark. I never bothered topping it up anymore because it didn`t drop any further, i think it drops because the new oil filter space is filled with oil after you have run the car. So you actually need about 5 litres and a bit to fill it completely.