I have a 92 300d and just had my pump o-rings changed out by my VERY good indy shop. I went over there yesterday for lunch with the owner and they had FIVE benz's in for fuel leaks. Shop owner said that someone must have changed the diesel fuel to a new formulation because he has NEVER had that many fuels leaks before. His usual number is one a month. Anyone know anything about this? Ernie in Louisville, KY