I strongly recomment Shell pumps to fill fuel for your vehicles. I have a diesel Indica and an year back, my car didnt pull itself. WhenI took it to the mechanic, the mechanic said that the fuel pump is gone for a toss and needs to be serviced. It costed me Rs14000 for that. After service my mechanic advised me to fill from Shell petrol bunks. For more than a year, I am using Shell diesel. The car was running smoothly. However due to the oil price hike, Shell diesel is Rs.13-14/- than the PSU oil companies. So I decided to fill in Hi-Speed diesel from BPCL pump in nesapakkam,Chennai. Within 2 days my car started to drag. On the next refil, I again filled it from Shell. Now the drive is again smooth. I really dunno whether the quality of PSU oils are bad aor the dealers add someting with the fuel. Its better to pay more for good quality