why does the manual show both an "87 Octane" tune under the economy section and a "87 Performance" tune under the Jeep power levels?
since there isnt actually a 87 Perfomance tune, for my JK, is there an advatage to running the 87 Octane tune? Since it isnt a performance tune and according to the manual you shouldnt tow with this tune, why not leave the factory tune in tact?
I can not say why the maual does not match the wording for the tuner.
1. 87 performance = Meaning no towing, better drivability and a little more power over stock on regular fuel. 8-10hp gains
2. MXS (mileage XS) Also a 87 tune, not so much performance, possible mileage improvments
3. tow (91 or better octane) towing up to the limits of the Jeeps rating from factory. = Adding better drivability, improved towing
4. Performance (91 or better octane) The most power that the tuning makes, no towing due to the increased ignition timing.
You still have the factory tuning in the tuner to tow on the 87 fuel.
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