It's taken from the transmission.
Mine seems accurate within 1-2 mpg when I pass some of those signs. 30-60mph range when I see them depending on where.
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2009 NISMO # 0193 | QAB | Albums! | 05.04.10 (Dynojet) 291.94hp/248.28tq
Oil Cooler (DIY) | Custom Headlights | GTSPEC Braces | F.I. Long Tube Headers
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