Whats your highest LS1 MPG with your setup?
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The 2004 GTO is the only LS in the country to get an Australian computer with the lean cruise function (although it is turned off stock). When I was stockish and had it enabled I could get in the 30s highway. Now that I'm a 383 I was getting low 20s although when driving it last month for tuning before I stored it I didn't go for economy. My lean cruise is not turned on yet and that gives me another 10%+ bump.
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I daily drive my truck (not that it gets a ton better) but on lower octane. I don't drive terribly far except for random trips.
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It's a stalled automatic heads cam car with the aero of a brick...I think it's pretty good. If I really messed with the tune I might be able to get some more from it, but it's not a priority. In town suffers due to the hills in the area.
I daily drive my truck (not that it gets a ton better) but on lower octane. I don't drive terribly far except for random trips.
I daily drive my truck (not that it gets a ton better) but on lower octane. I don't drive terribly far except for random trips.
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Totally different computer. They didn't want to do a whole new thing for the GTO for one year so the feature came over from Australia just disabled. Too many nitric oxides from running lean for the EPA. '05-'06 LS2s got a new computer.
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Hmmmm.... "In mammals including humans, NO is an important cellular signaling molecule involved in many physiological and pathological processes.[4] It is a powerful vasodilator with a short half-life of a few seconds in the blood."
Though it has its dangers also, still sounds better than carbon monoxide. Leave it to US to not want that, lol.
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Need to check Australia ebay
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Best Highway MPG 32.3 @ 70 MPH @ 1500RPM W/ Cruise control.
Southbound Hwy 5 between hwy 152 - foot of grapevine at
North side ( no climbing just flat or gentle rolling hills to that
Point) mileage figured by topping tank and reset trip odometer
At both points, mileage driven / gallons consumed,gas station at first
Stop literally at the onramp second stop less than 1/4 mile from
Offramp. 99.7% Highway
1999 C5 Coupe M6 ~130K Miles at time
VaraRam,LS2TB & 92 FAST (both ported by Tony Mamo)
1 7/8 ARH LTs, Borla merge muffler in tunnel, W/ Stingers.
Tuned By Robert Dito @ Ditos Motors 361HP/368Torque
AMSOIL fluids front to back
38 PSI tire pressure
Best city 17-18 driving like Granny. Cant do that for long LOL!
Traps 112MPH @ Sonoma Raceway
BIG BORE BUILD W/TFS LS3 Underway!
Southbound Hwy 5 between hwy 152 - foot of grapevine at
North side ( no climbing just flat or gentle rolling hills to that
Point) mileage figured by topping tank and reset trip odometer
At both points, mileage driven / gallons consumed,gas station at first
Stop literally at the onramp second stop less than 1/4 mile from
Offramp. 99.7% Highway
1999 C5 Coupe M6 ~130K Miles at time
VaraRam,LS2TB & 92 FAST (both ported by Tony Mamo)
1 7/8 ARH LTs, Borla merge muffler in tunnel, W/ Stingers.
Tuned By Robert Dito @ Ditos Motors 361HP/368Torque
AMSOIL fluids front to back
38 PSI tire pressure
Best city 17-18 driving like Granny. Cant do that for long LOL!
Traps 112MPH @ Sonoma Raceway
BIG BORE BUILD W/TFS LS3 Underway!
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Its looking like the mid range is 25mpg with anything above on the rarer scale and its way too easy to get worse mileage, lol.
If I find one, can I turn it on with a programmer?
Hmmmm.... "In mammals including humans, NO is an important cellular signaling molecule involved in many physiological and pathological processes.[4] It is a powerful vasodilator with a short half-life of a few seconds in the blood."
Though it has its dangers also, still sounds better than carbon monoxide. Leave it to US to not want that, lol.![Huh](https://ls1tech.com/forums/images/smilies/LS1Tech/huh.gif)
Need to check Australia ebay
If I find one, can I turn it on with a programmer?
Hmmmm.... "In mammals including humans, NO is an important cellular signaling molecule involved in many physiological and pathological processes.[4] It is a powerful vasodilator with a short half-life of a few seconds in the blood."
Though it has its dangers also, still sounds better than carbon monoxide. Leave it to US to not want that, lol.
![Huh](https://ls1tech.com/forums/images/smilies/LS1Tech/huh.gif)
Need to check Australia ebay
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Odd....... Sounded like NO wasnt that big a deal according to Google. Heh, Google, need I say more?
Hmmm, sounds like I am just reconfiguring the cell table? I have not found much on google about the "Australian tune", but, at least I have an advantage of knowing it is out there.
Hmmm, sounds like I am just reconfiguring the cell table? I have not found much on google about the "Australian tune", but, at least I have an advantage of knowing it is out there.
Last edited by csmc711; 11-15-2014 at 04:28 PM.