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Old 09-24-2018, 02:22 PM   #11 (permalink)
EcoModding Lurker
Join Date: Sep 2018
Location: Italy TN
Posts: 26

ypsilon - '99 Lancia Y (840) 1.2 8v e2 ls
90 day: 45.25 mpg (US)

Macaco - '16 CitroŽn Berlingo 1.6 BlueHDI 100
90 day: 49.25 mpg (US)
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To me it's not that the issue. Diesel run always in lean burn.

I think @ that speed turbo runs to low and it doesn't have enough pressure, so the real crompression ratio it's lower, less efficient and the car need more diesel to give enough power and keep that velocity.

Barely, just my thought

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