on my 98 f150 4.6 lt can i reinstall the programmer and only use regular unleaded fuel. instead of premium 92 oct. do to gas prices. one machinic said it would be fine. shouldnt hurt it at all. i miss the power it gives.

check out my pics under divewithtom

 

on my old hypertech it had 3 programs regular 89 and 93 octane mine was a hypertech 2 tho so it might be difrent, hope this helps