no ford trucks
I've heard about this stuff and decided to give it a shot in my 01 F-150. It has been pinging a little bit and was sluggish even after the tune up I did. I changed the oil (motorcraft 20/50) and cleaned the K&N. I added this stuff to the tank, and the next day drove it about 5 miles and then the truck surged, and shortly the "service engine soon" light came on, but after that surge it was like night and day. It runs smoother, accelerates better, and I have noticed that at 70mph it runs just under 2k rpm. It is the 4.2 V6. The code that came up was egr flow insuffucient. I reset the code and it runs great. I figure the surge was the junk that burned off and freaked out the egr sensor. So I would recommend this if your fuel injectors are gummed up.