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Old 08-26-2008, 05:29 AM   #5 (permalink)
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Join Date: May 2008
Location: Ireland
Posts: 507

De Yaris - '04 toyota yaris T2
90 day: 69.55 mpg (US)
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I had something similar happen my cee'd recently. I blocked the upper grille and the mpg suffered. Its a turbo intercooled diesel so the extra intake heat may have something to do with it. The intake is just behind the grille but at the top of the radiator, drawing air from in front of it. I left the grille block in place and inserted a cardboard radiator block to get the engine hotter. The mpg improved as i reckon the air pressure went up in that area, forcing air into the intake.

By the way, i'm still not getting the mpg i expected. Bleedin diesels! Bleedin warranty too; i cant do bugger all ecomodding to it!

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