Help me decide.
here is my first video which was taken with petro 87 octane:
Video 1 - 87 octane and here is the second video with petro 89 octane:
Video 2 - 89 octane BTW I know it is slow. It is a 95% stock Focus. It looks like the 89 will edge out the 87 for fuel economy by a big margin so far.
So judging by the videos... Which one appears to be working better for my car?
