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    Thread: Tdi fuel economy

    1. Member
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      04-11-2012 08:36 PM #26
      Quote Originally Posted by Greg_J View Post
      its more the fact that the vent cant vent the air out as quickly as you pump it in lol
      Less foam in the diesel, less air needs to come back out of the tank. Not very hard to figure out, lol.

    2. Member GTIDamien_407's Avatar
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      04-12-2012 07:12 PM #27
      Quote Originally Posted by MXTHOR3 View Post
      Less foam in the diesel, less air needs to come back out of the tank. Not very hard to figure out, lol.
      I got about 780km right now and just a smidge past a quarter, looks like i might hit close to 1000k on this tank. Not bad considering im on 18x8.5 wheels that weigh about 3lbs more each, I also filled my tires up to 38 psi which I think helped alot. Although you do feel the bumps in the road alot more. If my damn commute wasn't so mountaneous that'd help too

      What do you guy's think about streamlining the bottom of the car like bmw does?
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    3. Member
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      04-12-2012 07:28 PM #28
      Biggest impact to fuel mileage is your right foot. I wouldn't go crazy with aerodynamics

    4. Member Greg_J's Avatar
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      04-12-2012 07:46 PM #29
      Quote Originally Posted by MXTHOR3 View Post
      Biggest impact to fuel mileage is your right foot. I wouldn't go crazy with aerodynamics
      though speaking with aerodynamics.... i and a few of my fellow mk4 tdi drivers notice that with a roof rack (even just the bars), mileage is noticeably reduced.
      Quote Originally Posted by ennui_delphian View Post
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    5. Member MoldovaDIZEL's Avatar
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      04-12-2012 08:07 PM #30
      Anybody notice an improvement with a skid plate?
      Humberview Volkswagen
      98 Cabrio AAZ, 00 Mk4 ALH

    6. Member GTIDamien_407's Avatar
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      04-12-2012 08:25 PM #31
      Quote Originally Posted by MoldovaDIZEL View Post
      Anybody notice an improvement with a skid plate?
      probably not since our cars come stock with the plastic lining nder the engine, speaking of aerodynamics i wonder how much of a difference if any lowering your cars makes fuel consumption...
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    7. Member
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      04-12-2012 08:29 PM #32
      Quote Originally Posted by Greg_J View Post
      though speaking with aerodynamics.... i and a few of my fellow mk4 tdi drivers notice that with a roof rack (even just the bars), mileage is noticeably reduced.
      I've heard the same as well. I am going to pump my tires up to 50psi, ripoff my side mirrors and duct tape the entire front end of my car.

      I'll let you guys know how I make out! LOL

    8. Member Greg_J's Avatar
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      04-12-2012 09:46 PM #33
      Quote Originally Posted by GTIDamien_407 View Post
      probably not since our cars come stock with the plastic lining nder the engine, speaking of aerodynamics i wonder how much of a difference if any lowering your cars makes fuel consumption...
      ive noticed with a cup kit, no real change in mileage at all.

      i also run a aluminum skid plate too.

      oh, and i also run my tires to the max psi on the tire. i wouldnt test any higher than that. i this case its 46 psi.
      Quote Originally Posted by ennui_delphian View Post
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    9. Member GTIDamien_407's Avatar
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      04-12-2012 09:47 PM #34
      Quote Originally Posted by MXTHOR3 View Post
      I've heard the same as well. I am going to pump my tires up to 50psi, ripoff my side mirrors and duct tape the entire front end of my car.

      I'll let you guys know how I make out! LOL
      lol, how about weight reduction? full carbon fibre? yes please



      http://speedhunters.com/archive/2011...olf-mkiii.aspx

      Quote Originally Posted by Greg_J View Post
      ive noticed with a cup kit, no real change in mileage at all.

      i also run a aluminum skid plate too.

      oh, and i also run my tires to the max psi on the tire. i wouldnt test any higher than that. i this case its 46 psi.
      not low enough obviously haha yeah my max is 40 psi so im gunna play it safe at 38 because tire pressure tends to fluctuate, + my tires are old and made in china and have cracks in them
      Last edited by GTIDamien_407; 04-12-2012 at 09:50 PM.
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    10. Member Greg_J's Avatar
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      04-12-2012 09:50 PM #35
      Quote Originally Posted by GTIDamien_407 View Post
      lol, how about weight reduction? full carbon fibre? yes please

      in theory, reducing body weight wont make a drastic difference in fuel economy. its the rotating weight you need to reduce. wheels, rotors, etc.
      Quote Originally Posted by ennui_delphian View Post
      Don't anger canadiun lesbian...

    11. Member DaNo_VdUb's Avatar
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      04-22-2012 10:50 PM #36
      Ok so I drove about 40 km with the light on.I filled up and I still only put in 47litres...my tank was at 900 km. I could have kept going for a while yet no?
      Dan

    12. Member
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      04-22-2012 11:41 PM #37
      Quote Originally Posted by DaNo_VdUb View Post
      Ok so I drove about 40 km with the light on.I filled up and I still only put in 47litres...my tank was at 900 km. I could have kept going for a while yet no?
      Did you vent the tank? Old car my light came on and I could put exaclty 55L's in with venting... My '05 TDI Wagon I'll get 60 litres in with venting once the light comes on.

      You've got at least another 100kms once the light comes on if you are only putting in 47L's right to the top.

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