V10 Higher Octane?
I have a 2002 F350 V10 with 235000 miles on it, and I have always tried to run the higher octane gas. Just wondering if that was a waste of money? Thanks Rich
Forum Discussion
smkettner wrote:
If it calls for 87 that is what it needs in all conditions.
Higher elevations you can probably even go lower, I don't.
above about 3500ft you'll find that pump octanes are 85, 87, 89 for regular, mid and premium instead of 87, 89, 91 needs go down even more above that altitude.
Unless the manual calls for something other than 87 octane your not going to gain anything. engine ecu isn't going to give more advance,
