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TDI Fuel Economy Discussions about increasing the fuel economy of your TDI engine. Non TDI related postings will be moved or removed.

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Old August 2nd, 2009, 02:21   #1
Veteran Member
Vekke's Avatar
Join Date: Jun 2009
Location: Finland
Default Seat Cordoba vario 1.9 TDI (70MPG)

Here is my current setup which gives me +70MPG.

The car is Cordoba vario 98 pictures can be found at:


Fuel log:



- Rear wheel skirts (aero effect)
- Rear muffler delete (-4.4kg)
- Catalysator delete ( -2.5 kg)
- Towing bar delete (-16 kg)
- Spare tyre and jack delete (-10.8 kg)
- Roof rack and rails delete (aero effect) and (-4.1 kg)
- Rear seats delete (-9.5kg)
- 13" rear aluminium wheels (-4 kg
- Rear tyres Toyo 350 165/70/R13
- 14" front aluminium wheels (-2 kg each) rotational mass effect!
- Front tires Toyo 350 175/80/R14 (ca. 10% taller gearing)
- Tire pressures 50 PSI
- Flat hubcaps (aero effect)
- Smaller sidemirrors (aero effect) and (-2 kg)
- Aero fornt bumber
- Flat engine bay cover
- Tinted windows
- Engine oil Valvoline Syn power III 5w-30
- Transmission oils Mobil 1 VS200
- EGR delete
- Lowering springs 60/40 (aero effect)
- Other small weigth saving inside the car.

I think those are most of the mods done so far, still ahead:

- Glasfibre hood
- Better front bumber
- flat undertray
- sideskirts
- more weigth savings etc.

I think mods make half of the high mpg results driving habits the other half. I use at least these all the time:

- Drive without brakes
- Push and glide
- engine braking
- early gear changes (under 2000 rpm)
- lights off on motorways

Thats the current setup .
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Old October 8th, 2009, 08:42   #2
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Juergs's Avatar
Join Date: May 2007
Location: Virginia
Fuel Economy: 45 average over 220K miles

Nice work man.

Surprised you have not put a new body on your car and turned it into the below

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Old October 20th, 2009, 00:07   #3
Join Date: Jan 2008
Location: sweden

Hyvä Suomi!
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