ac123 Posted March 17, 2023 Report Share Posted March 17, 2023 When I had my car tuned I was only able to achieve a 69% mix of ethanol. Since then I filled up one time and that particular station happened to have higher % ethanol and after filling up it bumped me into the 72% area. Right after this the car was running lean. The fuel #2 properties had been set to match 69% ethanol (density, stoich, etc). I updated the values to 72% and the car mostly ran like it did before. What's the right way to account for a higher % ethanol after tuning fuel #2? Quote Link to comment Share on other sites More sharing options...
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