03 touring with 30k,,, is 305 miles a tank good for calm driving mostly on the interstate? no more than 85mph

 

nope. 300/20=15mpg. If you are getting 15mpg driving on the interstate, something is wrong.

 

+1 I got almost 500 a tank on the way out here. coast to coast

 

Straight interstate you should be getting MUCH more than that...I got around 29 straight interstate driving. Add city driving it drops it to 26.

 

lol how the hell do you get those numbers...

 

Lots of cruise control and sittin in sixth gear around 70 mph, I was amazed at the gas milage I got...but ever since then I've been sitting around 26

 

I am getting right around 300 mostly city driving though some highway.

 

Less than 15 miles per gallon in stop and go urban traffic with little to no speeds over 45 mph.

 

how much does the fact that my engine only has 750 miles on it affect my gas mileage?

 

lol no wonder that says it all... were both from Cali n it's basically stop n go everywhere

 

you can't put 20 gallons in our cars. 305 is a good number. you prolly put in 15.5 or less (unless you drive it long after the light comes on). Our gas tank is 18gal, I believe. So 305 div by 15.5 is close to 20 gal

 

Did something change between the 03-05's and the 06's. I am almost positive I have seen that I have a 20 gallon tank on my 06.

Edit:
http://www.internetautoguide.com/car...50z/index.html

This site shows it 03 Z to have a 76 liter tank. That is 20 gallons.

Now what is important to remember is to divide however many miles you have driven since your last fill up by the # of gallons you put back in when you fill back up. IE: 372 miles driven and 14.3 gallons put back in = 26.01 mpg. I average 23-26 mpg in my 06.

 

I don't know about the 06, but the rest of us have a 18.5

 

The OP didnt say how many miles, just a tank. By "tank", I'm assuming that he ran it to empty.

 

05 Touring with 16,279 miles. I am getting 21.8 miles per gallon driving a mixture of city and highway. My average mph is 32. I consistantly get about 392 miles per tank assuming we have 18 gallon tanks.

 

cannysage is wrong. All Z's have a 20 gallon tank, and 3 gallons of that is reserve. Look at your owners manual - it's plain as day. Most people don't realize the Z has such a big gas tank. There's a big weight difference between running full:empty. The big tank helps with the f:r weight distro.

That's assuming he ran his entire tank out of gas. It's more likely he added less than 17 gallons which is at least 18mpg. Regardless it's still not very good for highway miles.

 

Oh boy another gas mileage thread. Subscribing.

 

^ you would think after all the MPG threads that some of the regs would have their facts straight by now.

 

my bad.. must be thinking about my 4runner.. I was never able to fill up past mid 16ish, though.. cuz of the reserve.