Just for fun , i have a tank of reg in my LS , i run it once a winter , just to allow the computer to know the difference and change the timing . Does it need it probably not . Do i use reg , only on rare occasions like this.
Is their a difference in price , yes . but it still lead to a pay me now or later situation.
The power is usually decreased well with a high compression motor like an 98 and newer LS with drive by wire.
Strange thing is last night i dropped it on the highway and i swear i have never been pressed in the seat harder than that.
I did just change my plugs and the economy have lowered enough to be nothing short of amazing .
I do have a hesitation and it is no longer as smooth which was instantly from the fill up.
At first after the fill up the tranny usually is not as responsive as normal and is using weird shift points to compensate .
Next tank will be 94 again.