I was just wondering, not saying I've done this, but can you run the level 3 performance tune on 87 octane gas? Is it necessary to have higher octane? Would it mess anything up if you ran it on 87?

 

Yes, you will get detonation, melt the plugs, and blow the motor

in other words, you have to run 91-93

 

Hmm, sounds like fun! Sounds better to just buy the expensive stuff and not worry.

 

The Edge just advances the timing, which creates more power. But if you run low octane, it will burn faster than high octane, and cause detonation (which is an easy way to blow a motor)

So yes, it would be smart to spend a few dollars more for high octane

 

NO.

 

If you have to spend more on gas...then whats the point of getting one for gas mileage. Dunno if thats why you got it, i know they're good for a bunch of different things, but if i can run 87 octane now...why pay to get one of those things, then pay more for gas for a couple extra mpgs? Just wondering

 

Coming from somebody that has one. There is no point in getting one for better mileage. You may see 2 MPG better on the highway, TOPS. It would take some miles to make your money back.

And with the performance gains, your right foot will cause you to lose MPG's every where else.

Most of the people claiming big MPG gains are going off the average MPG reading on the Edge, not a manual calculation. It isn't very accurate.

I run 87 octane in mine, on the #2 tune, with the transmission setting tweeked. I also bumped the timing with no detonation. Makes it run like a complete different truck, and probably loses about 2 MPG. But I didn't buy it for a MPG gain.

 

AHH gottya. Just curious (not trying to steal the thread here), what kinda advantages is yours giving? I"m assuming power, towing.....

 

My #1 complaint with my truck from the start was the tranny. As soon as I started rolling, it would hit second gear,then hit third too soon, and so on. Always seemed to be in too high of a gear, and I would have to put the pedal through the firewall to get it to downshift.Would barely get to 4,000 rpm with wide open shifts.
Good for gas mileage, I guess, but felt like a slug on performance.

I use my Edge to wake up my transmission. It now winds out to 5,000 rpm on wide open shifts (till the serpentine belt lets out a squeel), and the part throttle shifts are turned up to hold the gears longer under part throttle.(feels like I went with lower gearing now).
The downshifts will come with the slightest pressure of the pedal.
I also have the shift points firmed up for faster shifts.

The #3 tune magnifies that even more. It will pull into the upper rpm range are long as you want. Highway driving on the #3 is a blast.

I don't know any actual HP numbers from the Edge vs a stock truck. But with the improvements in the transmission, if makes if feel like it's alot.

 

I also spent about a month adjusting for maximum fuel economy. The best setting was the #1 tune, which is stock engine, transmission only.
I turned the shift points down to get it to shift even earlier and set an alarm to go off at 2,200 RPM.
I got about 2 mph better than stock, but I was also trying to squeeze every last mile out of it with my right foot.

Set up like that, I realized I had paid $400 to make my truck perform worse than stock. The experiment didn't last long.