Good afternoon,

I own a 2004 Ram 1500 with 279,000 miles, a 2004 Chrysler Sebring Convertible with 108,000 miles and a 2013 Chrysler Town and Country with 188,000 miles. All three are automatics and require ATF+4 fluid. I have been faithful with service intervals. I have always used Castrol Synthetic oil and transmission fluid. I have been served well with zero transmission repairs. I was thinking about changing to Amsoil transmission fluid but they don’t have a dedicated ATF+4 fluid. They basically have two types of fluid. One that includes ATF+4 along with many other types. I know conventional wisdom says if it ain’t broke, don’t fix it. I have been served well by Castrol. What are your thoughts on the Amsoil fluid that list ATF+4 with many other types on the same bottle. Red flag???