2015 Silverado 2WD V6

[jimlaw3]

Hello,
So far I love the product, trying the get everything dialed in.

I was just wondering what other tunes Silverado owners were using, I currently have the 87 octane with TQ turned off and 5% throttle boost, seems as if trans shifting could be a little firmer, I currently use the firm setting. Any ideas without being too harsh.

[Hitech66]

2014 4.3, 87 octane fiex tune, 10% throttle boost, TM-on, DOD-off, firm shifts, 8% shift pressure increase on 2-3 shift. 2-3 shift still isn't crisp, but that shift has been lazy since new so may be another cause.

I've tried Diablotune too, pulls better but hard to justify 20% higher fuel cost. Would like to try E85, but not available in my local area.

Overall great tool.

[jimlaw3]

Thanks for the response, I just did the same setup, now its much better, I guess we will see if fuel mileage drops with DOD turned off.. ,

[Hitech66]

Glad to hear you like it.

I had it with DOD on, but turned DOD off the last couple tanks of gas and I'm not seeing really any impact in mileage - this tank has been mainly daily commuting to work, 30% highway and 70% city and I'm seeing 19.3 right now after 250 miles. With DOD on, best I saw in same driving conditions was 19.5. I made a 25 mile trip the last tank and got 24.2 for that 25 mile stretch with DOD off. The truck seems to drive so much better not going in and out of V4 mode all the time so I'm keeping it off. I should mention too that mine is 4WD (not 2WD like yours).