Garfy
Well-Known Member
True, the GT does not REQUIRE 91 octane as the owner's manual clearly states that the requirement is a minimum of 87 octane. I can tell you for a fact that if you want the best performance, you should run 91 or higher if your area has 93, etc. I can tell you that when I was "breaking in" the engine, I did a 0-60 mph test (using TrackApps) with a bit over 1000 miles on the car and it took 6.0 seconds! I then ran a tankful of premium and refilled it again and did the 0-60 mph test again. This time it clocked 4.9 seconds. Clearly 1.1 seconds is a lot considering only 5 octane points difference (we have 92 here). I wonder what the engine is actually tuned for and if 93 would result in even better performance?No. Premium is recommended for maximum performance but not required. Many folks on here use regular on a daily basis with no problems.
Sponsored