Thats BS if I would tell you to use 87 or 89 or 93 octane.....
The only one who can find out is you:
Get 87 octane gas and drive your car on a warm, dry day, AC on.
Cruise for about 5 minutes (on interstate what so ever) and then put the hammer all down.
If you hear engine ping, which actually sounds more like someone ratteling with a bounch of keys below the hood, betwen 4000 and 5000 RPM @ WOT you know that you would be better off with higher octane gas.
Here's what i have Heard so far n gas and Mustangs.............95-99 stangs use 89 octane
(mid grade) from the factory.......I you put 93 octane in any ofthese cars stock they will die and not stay started.........2000-2005 mustangs are equipted with a better puter that will allow the use of 87-93 octane........I have to use 93 or my 98 will really pig and sputter.....but It's sc'd and chiped........
I would stick with factory gas ratings untill you get more mods>
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