Dears, I just changed engine oil for my beauty Linea MJD to Mobil Delvac 1 5w40 (fully synthetic). 3.4 ltrs + Oil Filter. Oil cost: Rs. 3800 Oil filter: Rs. 390 Labour: Rs.250 Current odo - 36170 kms Nothing wrong with Selenia WR 5w40 (fiat recommended) which is all of us get changed, Also excellent, crisp & smooth pick up but i observed in Punto & Linea it gets very dirty & looses its life, smoothness at around 10K kms interval after oil change. So this time I tried to see how it goes with Mobil Delvac 1 5w40. Took a 50kms ride from Hinjewadi flyover to Pune-Mumbai expressway talegaon toll and back, few observations here : Speed: Min 120 - Max 150 NVH - Absolutely none at 150 also. Pick up - No significant difference when compared with Selenia Smoothness - Superb FE - 21 km/l (Excellent when compared with the speed taken) Total kms - 49 kms Pick up seems more linear but it looks the beauty will take some more time to breathe freely as the oil needs to assimilate for few more kms. Please share you experience who used Mobil Delvac 1 5w40 for Punto/Linea. Happy Motoring.