The plenum spacer, or any other mod other than weight or final drive is a bit useless if all you crave is mpg

 

wrong car to buy if you were looking for mpg. XD
but let me know how plenum spacer goes. i heard a lot of positive things about them.

 

but that doesnt mean you cant try to get decent gas mileage with it. I have fun with my Z but I still manually check the mileage every tank. Anyway, 21 sounds pretty typical. If youre really light footed and shift earlier than you do (2kish), you can get 25 or more. My record for a whole tank is 25.5 MPGs with city/hwy (06 base coupe)

 

I hope that gear change was an experiment

 

lol! sadly, im in 6th by 40 MPH with normal driving

 

I rip mine apart with the pedal to the floor.. mostly highway driving and get 25mpg

 

I shift around 3k normally and drive a mix of hwy in town and the average on the dash says 24.2...hwy I get close to 30 but I drive rather mellow most of the time.

 

I have the full exhaust bolt on and get a little better than 21 mpg. How you guys soft shoe through the revs always shifting before 3k is beyond me. Albeit for a sports car we get good mpg but just can't drive her with that as the goal. On trips about 4 hrs or so one way I can get 30 mpg as long as stay below 80 and speeds are constant.

Drive the car man like its intended. You'll forget mpg.

 

qft!

 

wow, how are most of you getting between 20-24??? I do mainly city driving, and occasional highway and I'm averaging about 17.9-18.5. I've been shifting at 3k consistently and still been getting screwed in mileage. its annoying lol

 

How are you calculating it? We drove our 04' ZR for 5 years, always getting at least 20mpg and usually 24-26mpg average with commuting and city driving. The HR we now have gets clearly worse gas mileage.

 

I have 2007 roadster. When I focus on MPG I can get 24.8 MPG on my commute which has 25% stop and go. I can get 28 MPG HWY on long trips.

 

hey guys, quick question. When you go to fill up your gas from completely empty, about how many gallons does it take for you to go back to full. I'm not sure if this is right, but when I get to the pump and put it in the gas tank, the pump stops at 13.5 gallons, and I was wondering if that was normal or if my sensor is off and it should be filling more gas?

 

My Z has taken 20.0 gallons before. It's a 20 gallon tank. The problem with the floats in the tanks is pretty common. How do you know it's "completely empty"? The gas low light comes on when there are between 3 and 5 gallons remaining.

 

yeah, you're right, I don't know exactly how empty it is, but the next time I fill up, I'm going to try force filling it up to about 16 gallons to see what happens haha

 

The most I ever see for a fill up is 18 gallons and change.

 

I get 24-ish consistently in my 04 ZR manual.

In city driving I don't see a need to shift any higher than 2,000 RPM unless you are passing somebody.

Shifting at 3-4,000 RPM is not "light footed"