Here is a nice view of what is going on with the price of gasoline in relation to diesel and jet. Notice that Diesel and jet are likely to lead increases in gasoline, while gasoline tends to lead a decline in the other fuels. The price collapses in 2009 and 2015 were lead be gasoline, while increases in 2008, 2011and 2018 were lead by diesel.
In this historical context, the decline of gasoline in the last 45 days looks worrisome. From 10/1 to 11/13 (most recent data in this source), gasoline has fallen 31% while diesel is down just 17%. How far does this go?