quick question, i have a 2003 elantra gt, and i went to the dealer to buy the fuel filter and they said that only 2002 and prior models had fuel filters, that the 2003 was unserviceable, that it only had a sock, and you just wait for the pump to die, which didn't make sense to me, also haha, they said i should drain my transmission fluid cause anything other than hyundai's fluid would ruin my engine, what do you think about that?