So about an hour ago I was driving going about 65-70mph and my truck randomly decelerated down to about 15-20 mph. When I pushed on the gas nothing happened didn't rev up or anything just sat there at about 1k Rpms going 20mph. All my lights stayed bright the whole time also. So I pulled over at the local gas station and as I was rolling in I tapped the gas and boom it workers fine, I drove home another 10 miles with no issues at all. What could cause this? Bad gas?

 

Scan it, - even if there is no CEL.