85 f150 302 efi... 5 gallons of diesel added to gasoline tank!
running ROUGH!!! what should i do??????

 

I don't know. Fill it with premium and see if you can run it out I guess.

 

nooooooooooooooo...don't do that.....just had a guy do that in a van where i work....drain it out of your tank as much as you can....pull the line off at the filter and let the pump run fresh gas out of the tank through the lines....replace the filter also...need to also drain the lines up to the injectors by suction or something...might have also harmed the pumps if ran to much on it......

 

i thought 86 was the first year for efi on 302 ?

 

it should not hurt anything never heard of it hurting just fill up and check your plugs when done. Its like putting marvel oil in your gas which you should do every now and then to help keep things movining freely I've seen poeple do it in 90 model cars it just smokes some.