Quote:
Originally Posted by Vekke
IN finland you can get Neste green diesel which cetan value is 54-56. (lupo will be tuned for that stuff... On regular diesel it is 50-51 range in Finland. That green diesel has more biodiesel (NExBTL) which cetan value is higher.
on 100% NExBTL diesels cetan value is between 70-90 but it has less energy density.
You will get the benefits og higher cetan if your car has learning ECU otherwise there will not come much gains.
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...similar results occur with
octane in gasoline engines--*if* the injectors are too small, the ECU might not be able to "adjust" the fuel injection pulse width enough to utilize the higher octane of E85 fuels, etc.