Gas tank 280zx
06-19-2008, 06:32 AM
#2
Well... you could always pay attention to the gas pump when you fill up. 
But I won't get preachy, other than a quick google search found this:
http://www.carsplusplus.com/specs197...zx_2_seats.php
But I won't get preachy, other than a quick google search found this:http://www.carsplusplus.com/specs197...zx_2_seats.php
Fuel capacity: 80.0 litres (21.14 gallons)
06-19-2008, 10:25 AM
#3
The Evil Twin
Join Date: Mar 2001
Location: Seattle, WA
Posts: 9,296
knowing the gallons it holds doesn't really help unless you drive until its empty.
Fill up, note your miles. Drive. Then fill up again. You'll know how many gallons you just put in and how many miles you drove. Divide those numbers.
My 350Z recently said I got 27.2 mpg on a tank using its onboard computer. I also used the above method to figure out how accurate that is. I calculated 27.9 mpg.
Fill up, note your miles. Drive. Then fill up again. You'll know how many gallons you just put in and how many miles you drove. Divide those numbers.
My 350Z recently said I got 27.2 mpg on a tank using its onboard computer. I also used the above method to figure out how accurate that is. I calculated 27.9 mpg.
06-22-2008, 12:01 PM
#7
More Than Meets The Eye
Join Date: Feb 2005
Location: Mesa, Az
Posts: 5,120
The '79-'83 coupes had 21 gallon tanks. The '79-'83 2 + 2's had 18 gallon tanks. But yeah...the proper way is to fill it up. And if you have a tripometer that works. Even better...but if not...just write down your mileage on your odometer. And then when you fill up. Which cost me $75 last night..ouch. Subtract your current mileage from the one you wrote down. And then divide.. how many gallons it took to fill it up. And that will give you your miles per gallon..
06-22-2008, 04:16 PM
#8
NisTuner
Join Date: Sep 2005
Location: Cleveland, Ohio
Posts: 2,800
Are you guys sure the 2+2s had smaller tanks? I have that Datsun 280ZX book that Nissan put out in 78 or whenever. They have the specs in the back and it shows a 21 gallon tank for both 2-seater and 2+2.
06-22-2008, 06:24 PM
#9
The Evil Twin
Join Date: Mar 2001
Location: Seattle, WA
Posts: 9,296
Originally Posted by duowing
Are you guys sure the 2+2s had smaller tanks? I have that Datsun 280ZX book that Nissan put out in 78 or whenever. They have the specs in the back and it shows a 21 gallon tank for both 2-seater and 2+2.
07-10-2008, 07:43 PM
#15
Registered User
Join Date: Jul 2008
Location: Northampton, PA..Stationed in Fort Benning, GA
Posts: 46
ok, so is it wierd that i get like 35-38 miles to the gallon on the highway and like 32 in the city? all i have done is a new exhaust (high flo cat and new muffler/pipe) and a k&n filter and cold air intake off of ebay. and when my gauge is at 1/8th of a tank, it takes about 14 gallons to fill it up...so 18 gallons sounds about right in a 1982 2+2
07-10-2008, 08:07 PM
#19
Originally Posted by ArmyZX
but i drove from here to charlotte (400 miles) and only used about 3/4 of a tank of gas
400 / 13.5 = 29.6mpg ... still a bit higher than normal. Were you driving @ 50mph?
07-11-2008, 06:07 AM
#21
Haterade by da gallon!
Join Date: Jun 2008
Location: Valdosta GA
Posts: 2,306
2+2's with airdams rock!!!!
its all in the aerodynamics of a 2+2 that cause it to get way better mpg that a coupe, add on a airdam from msa to that already PERFECT design and your running in the 30-35 mpg range!!!!
haha, silly slick top coupe owners with there "power to wait ratios" phssst!!!! all you need is two extra seats!!!!
im goning to have to say that mabe the calculation you mabe on the distance traveled is wrong... did you go by the odometer or maps?(both are crap) so use the intronets
its all in the aerodynamics of a 2+2 that cause it to get way better mpg that a coupe, add on a airdam from msa to that already PERFECT design and your running in the 30-35 mpg range!!!!haha, silly slick top coupe owners with there "power to wait ratios" phssst!!!! all you need is two extra seats!!!!
im goning to have to say that mabe the calculation you mabe on the distance traveled is wrong... did you go by the odometer or maps?(both are crap) so use the intronets
07-11-2008, 06:24 AM
#22
Registered User
Join Date: Jul 2008
Location: Northampton, PA..Stationed in Fort Benning, GA
Posts: 46
ok sorry guys, i really tried to resize my signature, but f*ck photobucket...anywayyyyyyy, im sure the trip mileage was right, and only used around 3/4 of a tank, so i dunno...maybe the exhaust plus the intake on a stockkkk motor helped me out? or maybe the car gods love me
07-11-2008, 09:15 AM
#23
The Evil Twin
Join Date: Mar 2001
Location: Seattle, WA
Posts: 9,296
Originally Posted by ArmyZX
anywayyyyyyy, im sure the trip mileage was right, and only used around 3/4 of a tank, so i dunno...maybe the exhaust plus the intake on a stockkkk motor helped me out? or maybe the car gods love me
"About 400 miles and around 3/4 tank of gas" isn't the equation used for tracking milage.
Even with a perfectly running engine, the optimum gearing, and most efficent speeds, a 280ZX can't get more than 35mpg. 75mph or more is not efficent.
Or maybe your entire trip was downhill
