Originally posted by bosotheclown2002
I know this might sound kind of strange for a 350Z owner but I have a '03 350Z Touring edition that I use for my everyday car and never race it for any reason ( just too old I guess ).

I would like to know how in this day-n-age of ever resizing gas prices how I might improve the gas mileage of my 350Z Touring edition. I only drive about 20 miles per day, about 1/2 city and 1/2 highway each way back and forth to work. As such I only get about 17-18 miles per gallon and do not step on except getting on the express way.

Originally posted by toothlessracer
i use my car as a daily driver 35 each way= 70 miles a day. I used to get about 22 mpg. Then I started to see if i could get better milage with different type of gas (brand) Mobil, Chevron, Shell etc. I'm now getting 23.5 mpg. conbined I shift about 3000. except when i'm on the on ramp or tryng to pass. I went back to using all kinds of gas to see if it was my imagination. and my mpg went down to where they were before. So for now I'm sticking with this brand of gas.
I
have other cars and they also get better gas mileage with different brands of gas (Eclipse Chevron) Mercedes (shell)

On Highway driving only I get 26.2 mpg doing about 80 mph.
Curently have 16k miles.

Give it a try.

[list=1][*] Gas on a busy highway can cost 10c more per gallon than the same brand and same grade at a quiet corner just a few blocks away. Compare prices on the routes you normally drive, but don't go out of your way. This is known as zone pricing of gasoline.[*] When traveling out of town, check prices. It may be much cheaper in your town or at your destination.[*] Use a gas rebate card. Many major oil companies offer a 1%-3% discount if you use their Visa or MasterCard.[*] Don't use a higher octane than you need. 40 million drivers unnecessarily buy a premium grade. Look at the car manual or call the manufacturer's Customer Service Department to determine the correct grade.[*] If your car doesn't seem to run right, try a different brand of gas (same octane) before switching to a higher, more expensive grade. The additives in another brand of gas might work better with your car.[*] After filling up, turn the gas pump nozzle around 180 degrees to drain the last half cup of gasoline into your tank.[*] Don't fill your tank right up to the top. As much as one half gallon can leak out when the gas sloshes around during travel.[*] Don't get zero miles per gallon warming your car. Numerous experts recommend idling your car for only about a minute and then driving it slowly for a few minutes. This will greatly improve gas mileage and also lubricate the engine better.[*] Check tire pressure once a month. Correct pressure saves gas and and could save you 50% on the cost of tires as well.[*] Check your tires for uneven wear. Proper alignment saves gas and tires.[*] Replace the air filter regularly. A dirty filter will make the engine run too "rich."[*] Tune your car at least as often as specified by the manufacturer. Tune sooner in cold weather or if you drive in heavy traffic. A tune-up will more than pay for itself in gas savings.[*] Use an "energy conserving" oil, an EC or EC-II motor oil.[*] Remove any unnecessary weight from the vehicle. (When did you really take a good look at the stuff in your trunk?)[*] If you're not using the rack on top of your car, take it off. Wind drag reduces mileage.[*] Use the air conditioner only when necessary, especially in traffic. At highway speeds, however, the AC may be more efficient.[*] Driving 55 MPH will save 10%-15% vs. driving 65 MPH.[*] Drive smoothly. Fast starts, sudden stops, weaving in and out of traffic lowers mileage.[*] If you family has two cars, drive the car that's still warm for a quick errand. A cold engine gets terrible mileage -- about one third of a warm one.[/list=1]

Suggested up-shift speeds

Shown below are suggested vehicle speeds for
shifting into a higher gear. These suggestions
relate to fuel economy and vehicle performance.
Actual up-shift speeds will vary according to
road conditions, the weather and individual driving
habits.

For normal acceleration in low altitude areas
[less than 4,000 ft (1,219 m)]:

Gear change MPH (km/h)
1st to 2nd 8 (13)
2nd to 3rd 16 (26)
3rd to 4th 25 (40)
4th to 5th 28 (45)
5th to 6th 33 (53)

Originally posted by Bait-Fish
10. Check your tires for uneven wear. Proper alignment saves gas and tires.

Originally posted by reen
You never said WHICH brand of gas works best for your Z!

I picked up about 1.5 mpg on the highway by switching to Amsoil full synthetic oil. I get between 27 & 28 mpg on the highway at 80 mph, and about 19 city. I never shift below 4000 rpm, and routinely run it up to 5000-6000 for on ramps, passing, etc.

Originally posted by overboostedtoy
Do you stick with the Amsoil recommended oil change interval? The claim by the manufacture is like at least 15k miles before oil change. Have you tried it? If yes, does the oil drain out sticky or watery. I'm a bit skeptical about the claim, but willing to give it a try since I drain out my Mobil 1 synthetic every 10k miles. What other improvments have you noticed besides improving gas mileage? Thanks

Originally posted by overboostedtoy
Do you stick with the Amsoil recommended oil change interval? The claim by the manufacture is like at least 15k miles before oil change. Have you tried it? If yes, does the oil drain out sticky or watery. I'm a bit skeptical about the claim, but willing to give it a try since I drain out my Mobil 1 synthetic every 10k miles. What other improvments have you noticed besides improving gas mileage? Thanks