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Old 06-11-2013, 01:36 AM   #21 (permalink)
Rango318
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Join Date: Mar 2012
Location: Holgate, Oh
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Geoff - 5 speed swap - '02 Volkswagen Jetta GLS TDI
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Quote:
Originally Posted by Rango318 View Post
So, i did some testing today. Did a tuft test, which i will upload pics of tonight. I did one test with the hatch closed, then one with the hatch open, and all gaps sealed. I made it as close to the correct angle as possible. I then ran one tuft test. I decided to fill up, and drive to where i work and back to get a real life style test.

My tank last week, monday thru friday was a new high of 43.84.

To run my test, i did everything i would usually do when going to work. Stopped at the store, stopped in the parking lot at work.

The only things that i did not test for : usually the return trip is at night, so it is colder, engine is cold, and the headlights are on. All of which i did not include in this test.

All I can say about the results is WOW. I drove 58 miles on 1.091 gallons (53mpg). I am going to leave it like this for this week of work and see if i see this big of a change again. One can only hope.
So i must have somehow, even with being extremely careful, messed up filling on my second fill. The 53mpg is not accurate.

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2002 Jetta GLS TDI 345k+ miles, all mods listed in description 156HP, 298FT/LB



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