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Old 02-01-2012, 10:03 AM   #23 (permalink)
viio
EcoModding Apprentice
 
Join Date: Dec 2008
Location: Scotland
Posts: 102

Project EconoPolo - '04 Volkswagen Polo Twist TDi
90 day: 48.23 mpg (US)
Thanks: 14
Thanked 61 Times in 24 Posts
First two fill-ups have given me 55mpg and 58 mpg (UK) - both are short on the 61.8mpg combined that the factory suggests. I've been carrying a fair bit of weight around but as it's mostly long motorway journeys I'm surprised it isn't higher.

I wonder if I ought to reconnect my cold-air feed to see if the engine is starved of oxygen. I have a feeling I'm having to work the engine quite hard to get it to climb hills etc and the cold air feed might help with that.
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Viio
Amateur SolidWorks Flow Simulator

Link to my Project EconoPolo (aeromodding a VW)
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