Hey guys I have a 2007 Chev Impala LS Flex Fuel that I am getting ready to do a second pan drop to change the ATF. Car has 55K on it but I am using it a lot more now as a daily driver than it was used in the past. It calls for DEXRON VI which I have used in the past but I have come upon a NAPA store that is selling Peak Full Synthetic ATF Multi-Vehicle for DEXRON VI / Mercon IV at just $0.99 for each 1 quart bottle. What are your thoughts on using this or just stick with the Dexron VI as I have done in the past.