Just a very minor loss of performance.
" regular " unleaded , 87 octane for the 5.4 liter in a 2008 Ford Expedition
According to the 2005 Ford F-250 owners manual : " regular " unleaded , ( 87 octane ) is used in the 5.4 liter V8 and the 6.8 liter V10 engines
whit height octane super 94
the 6 cyl. will use 87 octane and the 5.7 and 6.1 hemi will use 92 or 93 octane.
10w30
Use 87 You Will Do Just Fine Correct, contrary to the popular myth, the use of a higher octane than required will not increase power or MPG. It is a waste of money.
150 octane Avgas (no longer used) 100LL Avgas 98 octane premium leaded (no longer used) 95 octane unleaded 82 octane regular (no longer used) 80 octane Avgas (no longer used)
5w20 7 quarts
I was looking at the 2003 Ford Ranger Owner Guide and it shows for the 4.0 liter SOHC , V6 engine ( " regular " unleaded gasoline , 87 octane ) So , the answer is ( no ) * there was a flex fuel version of the 3.0 liter " Vulcan " V6 engine available that used either 87 octane unleaded gasoline , E85 , or any combination of the two fuels
ATF
87 octane
I have used regular "87" octane gas in my 1993 Buick Roadmaster for 7 years and it runs like a top. I don't know the gas mileage as my odometer doesn't work, but it seems to be OK.