87, 89, or 93 in your GT?
#23
Bullitt Member
Thread Starter
Join Date: March 23, 2004
Posts: 281
Likes: 0
Received 0 Likes
on
0 Posts
Yeah when I get my 05' I'll switch it up and see what difference is and then make my decision. Of course if I do end up getting a supercharger put in it someday, then I'll use the 93'.
#26
Shelby GT350 Member
Join Date: January 30, 2004
Location: Boise, ID
Posts: 2,155
Likes: 0
Received 0 Likes
on
0 Posts
Yep, just because.
I haven't heard anything bad about 89 octane or it making more deposits besides, I use a fuel/injector system cleaner every few thousand miles. Not lately since it's being babysat back in the states. I wouldn't waste the money on premium even if I had it here on the base in Iceland, $1.59 a gallon for premium.
I haven't heard anything bad about 89 octane or it making more deposits besides, I use a fuel/injector system cleaner every few thousand miles. Not lately since it's being babysat back in the states. I wouldn't waste the money on premium even if I had it here on the base in Iceland, $1.59 a gallon for premium.
#28
i've been using 93 octane in my 2001 GT since i've purchased it 3 years ago. Not much logic to it though, i've been told that there are less contaminants in the 93 than 87, is that true? Also, since i've been using 93 for 3 years, would it be safe to down-grade to 87 now or would my baby hate me?