I have a 2005 Kia Sedona and the transmission fluid was changed out by the dealer about 23,000 miles ago. The transmission is supposed to use SP-III transmission fluid, but the dealer used BG Synthetic fluid according to the receipt. What would be the best Lubegard to put in it? I'm going to be driving cross country in about a month and would like to add Lubegard to help "refresh" the current fill. Thanks in advance for your responses.