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Fuel tank size

28K views 37 replies 19 participants last post by  buckwheat  
#1 ·
Have a 2012 touareg tdi my best tank so far was 850km with around 1/8 of a tank left they say it has a 100 liter tank but have never even put 80-85 litres in it was curios if anyone has the same problem or does it just have an extra large bottom 1/4 tank
 
#2 ·
you have to take to consideration this fact, as soon as your refuel light comes on you have 12 litters of fuel left in tank, on T1 it is 12 litters it must be same on T2 and T3 so when you add 85 litters of diesel you have 12+85= 97 and those 3 litters can be temperature factor as if its hot you get less fuel as it expands and shrinks depending on the temp :) hope this makes some sense :)
 
#3 ·
Didn't the T3 have an 85 litre tank unless you had the Escape model with the 100 litre tank?
 
#8 ·
So Coldogg probably has an 85 litre tank then?
 
#14 ·
Wondering if 100L tank is a direct swap ? Range in my 2012 VR6 is not so great, lots of hills around here.. May be cheaper to buy a tdi if all the drivetrain needs to be removed lol
 
#15 ·
Geez... VW decontented the fuel tank at one point. Sigh. :(
 
#20 ·
Wow Black Grouse. Thank you for the background information. That helps to explain the situation a bit better. I was thinking what possible reasonable reason could they have to decrease the fuel tank other the to drop the second pump and costs.

I stopped following VW closely toward the end of the T2, just before the T3 came out.
 
#22 ·
I've noticed that a lot of the European content (or not) is based on the tax systems. For instance, I understand the the big reason diesels are such a big thing is that the taxes in almost all countries reward efficiency more than horsepower.
 
#23 ·
In simplistic terms, most governments in European have sought to reduce air pollution by concentrating taxation on CO2 output - since CO2 output is directly proportional to fuel consumed, European buyers have focussed on fuel consumption which was always much lower on both turbo- and non-turbo diesels than non-turbo petrol/gasoline, although the gap has narrowed with the modern crop of turbo-petrol/gasoline with direct injection.

Although European fuel has reduced in price, due to the Saudi trade war with the USA, it's still very high due to taxation structures which use a fixed duty tax per litre of fuel plus a sales tax based on price - even if the oil companies gave fuel away for nothing, the UK price couldn't reduce below about 80% of where it is right now, because of the fuel taxation structure.
 
#24 ·
Consumption / CO2 optimization aside, don't you get 100 liters tank with T3 if you choose Terrain Tech / 4XMOTION?

I didn't know about the connection of fuel tank size to the parking heater, though... You get the second battery, but bigger tank... Cool!
 
#36 ·
Citations aren't necessary - the definitions of kerbweights for EU tests are publicly defined and available on the internet - try google but other search engines are available.

My adding up all the small weight savings, manufacturers are saving 200-400 kg on new models and that DOES have an effect on fuel consumption figures - not at steady speed maybe but during urban stop-start.
 
#37 ·
Citations aren't necessary - the definitions of kerbweights for EU tests are publicly defined and available on the internet - try google but other search engines are available.

My adding up all the small weight savings, manufacturers are saving 200-400 kg on new models and that DOES have an effect on fuel consumption figures - not at steady speed maybe but during urban stop-start.
We were talking about 1 THING "4 gallons" now your talking about the all inclusive ALL. So your backing down on the 28# being measurable in MPG?

Don't be obtuse: Yes 900# going to make a difference, that is a full car load of adults.

Your laws do not concern me. Also .5% of weight reduction of a 5000# vehicle IS NOT GOING TO BE ABLE TO BE MEASURED for MPG savings. Margin of error is larger!

If that is the case, where are all the car MPG test jockeys? Do they need special equipment to operate the vehicle?

You just crushed my dreams. >:)
 
#38 ·
A documented modification to the Chevrolet Eco Cruze is to replace the fuel tank sender with one from a standard Cruze. It takes fuel capacity from 12.6 gallons to 15.6 gallons. Same fuel tank, but the former has a vent shutoff when it is 3 gallons short of full in order to improve fuel economy. Chevy also uses shorter flange welds on the Eco than the regular Cruze. It sounds stupid, but when it is added together, the Eco is 200# lighter than the standard car.

The current Golf has a smaller fuel tank (13.2 gallons) than the previous generation (14.5 gallons). They have the capability to fit a larger fuel tank and do so on the Golf R and 4-motion models since they need it to maintain a decent range.

The federal government estimates that a 100# drop in weight results in about a 1% fuel economy increase. I'm not a fan of using fuel tanks to achieve this weight reduction, but I understand why manufacturers are doing it.