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06-16-2018
I accepted a new position for work, and have to start driving my GTP once again (It typically gets 500-1000mi a year of use)
I am currently getting about 27mpg and was curious on any suggestions, or mods (ubend delete, etc) that might help a bit while on the highway. This is only for a few months until I pick up a
2nd car as a daily driver for highway use.
Car is stock with a homemade CAI.
06-16-2018
27 mpg is up there i have only ever got that on a 4 hour nonstop cruise on drive to madison wi in a NA GP.
Stay out of boost would be the only tip
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06-16-2018
Thanks. I was figuring it was not too bad for a 18yr old car, but curious if I could squeeze a bit more out of it for the next few months.
06-16-2018
27 mpg is good on the highway, however 30 mpg average is easily obtainable, of course driving habits are the biggest factor in your MPG. I average 30 mpg at around 70-75 mpg, the only modification I have is a front Plog and a ported rear manifold, stainless magnaflow resonator and K & N drop in filter (stock air box), 2000 GTP. I keep my front tires around 34 psi, and 30 psi in the rear. Most of all a steady and smooth foot on the accelerator plays the biggest part for obtaining best MPG.
06-16-2018
id be happy as can be with 27 hwy. your a flat lander, so its not gonna get much better, even with some mods.
i just got 25 hwy with hills at 70 mph to and from the drag strip last week. i got mods and a tuner, its not gonna get much better for me. not that im complaining about it. thats a respectable number really for the hills i got here.
and i run my tires at 40 psi all around.
06-16-2018
Increase tire pressure.
Remove unnecessary weight from the car.
Advance timing at cruise. 40-45° gives a nice mileage bump.
07-14-2018
Averaging 28.9 - can't quite past this but not bad....
07-17-2018
My drive to work is all freeway, and I see 26-7mpg all day long, cruising around 120km/h (75mph). I do notice that when I keep the speed down to 100km/h (60mph), I see at least an extra 50km (30 miles) out of the tank.
07-17-2018
I'd be surprised if you can get much better than this.Originally Posted by Y2KGTP
07-17-2018
Best thing you can do is look at the terrain and keep the rpm as low as possible w/o bogging in 4th. For example I ended up being relocated for a while into the woods. What this did was put me off the highway at 70-80mph and onto roads that were 40-45mph. I drove 45-55mph and got better mileage than I did at 70+.
If the terrain isn't hills etc..you can do better by going a bit slower.
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