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Old 09-05-2017, 01:12 AM   #2 (permalink)
BLSTIC
Master EcoModder
 
Join Date: Jun 2010
Location: Australia
Posts: 253

Delivery 'Boy - '86 Suzuki Mighty Boy
90 day: 37.15 mpg (US)

SkipSwift - '13 Suzuki Swift GL
90 day: 35.44 mpg (US)
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In lots of engines the difference between emissions standards is calibration. One of the cars here in Australia lasted through a few variations of standards by going from

DOHC Dual VVTi
DOHC Dual independent VVTi (software only)
DOHC Dual independent VVTi with slightly more squish area and a new inlet manifold

That was enough to take it from Euro 3 to Euro 5
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