Fuel tank sizes?

Mazdabater · 02-11-2011, 09:53 PM

So both of my cars are imports so I don't really know any of the history behind them. My s4's a savanna gt limited which I think is the model below the ifini as it came with climate control etc. And my s5 I don't really know what model it was. Was filling up the s4 the other day and noticed it's got a 45 or 50L fuel tank in it, while the s4's got a 70 - 75L fuel tank in it.

Were these an option or has my s5 got an aftermarket tank in it?

***TitaniumTT*** · 02-11-2011, 10:22 PM

S4 tanks were around the 16.4 GALLON area and the S5's were aroung 18 gallons. Something to keep in mind when swapping senders, straps... whatever. Dunno what a litre is.... litre cola maybe

NoDOHC · 02-11-2011, 10:33 PM

Give him a break, he is from Australia.

Seriously, 63L and 70L (S4 and S5)

Mazdabater · 02-11-2011, 10:42 PM

Screw your gallons, thats really odd the one in the s4 must be smaller. Because theres no way its more then 45L ive had it right on empty and it took 42L or something.

Pete_89T2 · 02-12-2011, 07:56 AM

Quote:

Originally Posted by Mazdabater

Screw your gallons, thats really odd the one in the s4 must be smaller. Because theres no way its more then 45L ive had it right on empty and it took 42L or something.

Do the gas stations in Australia use those anti-smog vapor recovery nozzles like they do here in the USA? If so, I've found that in the warmer months these pumps like to shut themselves off prematurely when filling up my '89T2. I assume the anti-smog nozzle function interferes with the tank's ability to properly vent itself, so when it's hot outside, you get a big pocket of air trapped in there that prevents the tank from filling completely. Fix for me is to just remove the nozzle partially, allowing some air to escape, then re-insert and start filling again. You might have to do this several times to completely fill the tank -- on really hot days, I've added another 3~5 gallons after the initial pump shutoff this way.

***TitaniumTT*** · 02-12-2011, 01:01 PM

That thing is a PITA regardless of the car. My truck for example, after it shuts off I can ALWAYS get an extra 1.5-2gals in.

firzen · 02-12-2011, 03:28 PM

Might be a good idea to add this information to the FAQ/archives, in case it comes up again in the future.

hIGGI · 02-12-2011, 04:22 PM

European cars, sizes were not different only by Series, but by model (turbo or NA)

S4 NA = 63L
S4 TII = 70L
S5 TII = 70L
S5 NA = not offered on EUDM

Mazdabater · 03-05-2011, 08:30 AM

Just to bump this, drove the car till it was close to running out of fuel the other day, as it was the day before pay day and I spent all my cash on other goodies. Think my gauge is out of cal, as I was very unsure if I would make it home. It went down to where I should be out of fuel and the fuel light was still coming on and off not staying on solid. Got it to the servo the next morning and it drank 58L of fuel. When I had filled it up the week before from a fly shit above empty it took 40L.

***TitaniumTT*** · 03-05-2011, 08:54 AM

When my S4 was stock, the gauge would drop to 1/2 in 100 miles, then it would take 200 to 250 miles to get to empty. From what I remember, when the light started coming on I had roughly 3 gallons left.

There is a possibilty that your sender is a little off, the gauge is a little off, corrosion on one of a dozen terminals, etc etc. The fuel gauge is an ohmmeter.... any resistance anywhere is going to affect the readings.

Rotary Evolution · 03-05-2011, 01:39 PM

a common issue on the 2nd generation sending units is for the sending unit wires to fray near the bottom of the tank, throwing off their calibration at lower fuel levels.

i've been noticing it alot more lately as the cars are getting older.

RETed · 03-05-2011, 03:13 PM

Quote:

Originally Posted by Rotary Evolution

a common issue on the 2nd generation sending units is for the sending unit wires to fray near the bottom of the tank, throwing off their calibration at lower fuel levels.

i've been noticing it alot more lately as the cars are getting older.

I have no idea what you are talking about...

If it was indeed fraying, there would still be electrical contact.
When the wire completely broke, it would obviously lose signal.
Even if you had one wire still intact, the voltage is low enough that one strand of wire would still provide an adequate signal.

I just changed my fuel level sender in my 1987 turbo and saw no evidence of "frayed" wiring.
It was the potentiometer resistance sweep (common problem for any type of (non-sealed?) potentiometer) to degrade this way.

-ted

chibikougan · 03-05-2011, 03:26 PM

Do remember they idiot proofed gas tanks. They have a "Reserve" so that people running them to Empty did not run out of gas right at that moment. I know my Taco has a reserve to get another 100+ miles to get some gas.

On my 74 BMW 2002 Empty was Empty I am not sure as to what year they enacted this.

***TitaniumTT*** · 03-05-2011, 11:27 PM

Quote:

Originally Posted by chibikougan

Do remember they idiot proofed gas tanks. They have a "Reserve" so that people running them to Empty did not run out of gas right at that moment. I know my Taco has a reserve to get another 100+ miles to get some gas.

On my 74 BMW 2002 Empty was Empty I am not sure as to what year they enacted this.

I've noticed that with alot of newer cars as well, take my Jeep. When the light goes on there's about 100 miles left if you're on the highway at a reasonable speed. Cold winter mornings letting the truck warm up and siting in traffic, 50 miles. I know this becuase I put 5 gal in my mounted jerry and drove the thing empty, twice

Then I drove a few miles to the gas station and put 15.3 gal into a 22 gallon tank. Stupid vapor reserve things

RICE RACING · 03-09-2011, 06:50 AM

Real cars come factory standard with 120lt carbon fiber fuel tank

02-11-2011, 09:53 PM	#1
Mazdabater FC3S Join Date: Jun 2010 Location: Townsville, QLD, AUS iTrader: (0) Posts: 326 Rep Power: 15	Fuel tank sizes? So both of my cars are imports so I don't really know any of the history behind them. My s4's a savanna gt limited which I think is the model below the ifini as it came with climate control etc. And my s5 I don't really know what model it was. Was filling up the s4 the other day and noticed it's got a 45 or 50L fuel tank in it, while the s4's got a 70 - 75L fuel tank in it. Were these an option or has my s5 got an aftermarket tank in it?

02-11-2011, 10:22 PM	#2
*TitaniumTT* Test Whore - Admin Join Date: Mar 2008 Location: Right Behind you son iTrader: (4) Posts: 4,581 Rep Power: 10	S4 tanks were around the 16.4 GALLON area and the S5's were aroung 18 gallons. Something to keep in mind when swapping senders, straps... whatever. Dunno what a litre is.... litre cola maybe __________________ -The Angry Stig- DGRR 2009, 2011, 2012 & 2013 - Best FC DEALS GAP!! WOOHOOOO!!!!! 2015 Audi S4 - Samantha - Zero Brap S4 2004 RX8 - Jocelyn - 196rwhp, 19mpg fuel to noise converter 2000 Jeep Cherokee Sport - Wifey mobile - Now with 2.5" OME lift and 30" BFG AT KO's! So it begins 1998 Jeep Cherokee - 5 spd, 4" lift, 33" BFG's - Rotary Tow Vehicle 1988 'Vert - In progress 1988 FC Coupe - Gretchen -The attention whore BEAST! I'm a sick individual, what's wrong with you? I'm pure Evil I'm still insane, in the best possible way. I think Brian's idea of romance is using lube. Your rage caused the meteor strike in Russia. The Antichrist would be proud of his minion. You win with your thread. Most everything It's a truck with a steel gate on the back. Just a statement of fact Motec M820, AIM dash, ported 13B-RE Cosmo, 6-spd trans, 4.3 Torsen, custom twin wg fully divided mani, Custom 4" split into 2x 3" exhaust, Custom HMIC, Custom custom custom custom I like to welder stuff.... No Bolt-ons allowed. Dyno'ed @ Speed1 Tuned by me - 405rwhp on WG.... WM50 cuming soon. *-Angry Motherfcker Mode ENGAGED-**

02-11-2011, 10:33 PM	#3
NoDOHC The quest for more torque Join Date: Sep 2008 Location: Sheboygan, Wisconsin iTrader: (1) Posts: 855 Rep Power: 17	Give him a break, he is from Australia. Seriously, 63L and 70L (S4 and S5) __________________ 1986 GXL ('87 4-port NA - Haltech E8, LS2 Coils. Defined Autoworks Headers, Dual 2.5" Exhaust (Dual Superflow, dBX mufflers) 1991 Coupe (KYB AGX Shocks, Eibach lowering springs, RB exhaust, Stock and Automatic)

02-12-2011, 01:01 PM	#6
*TitaniumTT* Test Whore - Admin Join Date: Mar 2008 Location: Right Behind you son iTrader: (4) Posts: 4,581 Rep Power: 10	That thing is a PITA regardless of the car. My truck for example, after it shuts off I can ALWAYS get an extra 1.5-2gals in. __________________ -The Angry Stig- DGRR 2009, 2011, 2012 & 2013 - Best FC DEALS GAP!! WOOHOOOO!!!!! 2015 Audi S4 - Samantha - Zero Brap S4 2004 RX8 - Jocelyn - 196rwhp, 19mpg fuel to noise converter 2000 Jeep Cherokee Sport - Wifey mobile - Now with 2.5" OME lift and 30" BFG AT KO's! So it begins 1998 Jeep Cherokee - 5 spd, 4" lift, 33" BFG's - Rotary Tow Vehicle 1988 'Vert - In progress 1988 FC Coupe - Gretchen -The attention whore BEAST! I'm a sick individual, what's wrong with you? I'm pure Evil I'm still insane, in the best possible way. I think Brian's idea of romance is using lube. Your rage caused the meteor strike in Russia. The Antichrist would be proud of his minion. You win with your thread. Most everything It's a truck with a steel gate on the back. Just a statement of fact Motec M820, AIM dash, ported 13B-RE Cosmo, 6-spd trans, 4.3 Torsen, custom twin wg fully divided mani, Custom 4" split into 2x 3" exhaust, Custom HMIC, Custom custom custom custom I like to welder stuff.... No Bolt-ons allowed. Dyno'ed @ Speed1 Tuned by me - 405rwhp on WG.... WM50 cuming soon. *-Angry Motherfcker Mode ENGAGED-**

03-05-2011, 08:54 AM	#10
*TitaniumTT* Test Whore - Admin Join Date: Mar 2008 Location: Right Behind you son iTrader: (4) Posts: 4,581 Rep Power: 10	When my S4 was stock, the gauge would drop to 1/2 in 100 miles, then it would take 200 to 250 miles to get to empty. From what I remember, when the light started coming on I had roughly 3 gallons left. There is a possibilty that your sender is a little off, the gauge is a little off, corrosion on one of a dozen terminals, etc etc. The fuel gauge is an ohmmeter.... any resistance anywhere is going to affect the readings. __________________ -The Angry Stig- DGRR 2009, 2011, 2012 & 2013 - Best FC DEALS GAP!! WOOHOOOO!!!!! 2015 Audi S4 - Samantha - Zero Brap S4 2004 RX8 - Jocelyn - 196rwhp, 19mpg fuel to noise converter 2000 Jeep Cherokee Sport - Wifey mobile - Now with 2.5" OME lift and 30" BFG AT KO's! So it begins 1998 Jeep Cherokee - 5 spd, 4" lift, 33" BFG's - Rotary Tow Vehicle 1988 'Vert - In progress 1988 FC Coupe - Gretchen -The attention whore BEAST! I'm a sick individual, what's wrong with you? I'm pure Evil I'm still insane, in the best possible way. I think Brian's idea of romance is using lube. Your rage caused the meteor strike in Russia. The Antichrist would be proud of his minion. You win with your thread. Most everything It's a truck with a steel gate on the back. Just a statement of fact Motec M820, AIM dash, ported 13B-RE Cosmo, 6-spd trans, 4.3 Torsen, custom twin wg fully divided mani, Custom 4" split into 2x 3" exhaust, Custom HMIC, Custom custom custom custom I like to welder stuff.... No Bolt-ons allowed. Dyno'ed @ Speed1 Tuned by me - 405rwhp on WG.... WM50 cuming soon. *-Angry Motherfcker Mode ENGAGED-**

02-11-2011, 10:42 PM	#4
Mazdabater FC3S Join Date: Jun 2010 Location: Townsville, QLD, AUS iTrader: (0) Posts: 326 Rep Power: 15	Screw your gallons, thats really odd the one in the s4 must be smaller. Because theres no way its more then 45L ive had it right on empty and it took 42L or something.

02-12-2011, 03:28 PM	#7
firzen Rotary Fanatic Join Date: Mar 2008 iTrader: (2) Posts: 231 Rep Power: 17	Might be a good idea to add this information to the FAQ/archives, in case it comes up again in the future.

02-12-2011, 04:22 PM	#8
hIGGI Rotary Fan in Training Join Date: Mar 2008 Location: Czech Republic iTrader: (0) Posts: 78 Rep Power: 17	European cars, sizes were not different only by Series, but by model (turbo or NA) S4 NA = 63L S4 TII = 70L S5 TII = 70L S5 NA = not offered on EUDM

03-05-2011, 08:30 AM	#9
Mazdabater FC3S Join Date: Jun 2010 Location: Townsville, QLD, AUS iTrader: (0) Posts: 326 Rep Power: 15	Just to bump this, drove the car till it was close to running out of fuel the other day, as it was the day before pay day and I spent all my cash on other goodies. Think my gauge is out of cal, as I was very unsure if I would make it home. It went down to where I should be out of fuel and the fuel light was still coming on and off not staying on solid. Got it to the servo the next morning and it drank 58L of fuel. When I had filled it up the week before from a fly shit above empty it took 40L.

03-05-2011, 01:39 PM	#11
Rotary Evolution rotaryevolution.net Join Date: Feb 2011 Location: Las Vegas, NV iTrader: (0) Posts: 248 Rep Power: 14	a common issue on the 2nd generation sending units is for the sending unit wires to fray near the bottom of the tank, throwing off their calibration at lower fuel levels. i've been noticing it alot more lately as the cars are getting older.

03-09-2011, 06:50 AM	#15
RICE RACING Don Mega Join Date: Dec 2008 Location: Utopia iTrader: (0) Posts: 1,688 Rep Power: 17	Real cars come factory standard with 120lt carbon fiber fuel tank __________________ www.riceracing.com.au Worlds best Apex Seals Coil on Plug Water Injection ECU Calibration