Grant Baker Posted February 8, 2020 Report Share Posted February 8, 2020 Hi Guys, Interested in if the numbers in the Help file are useful for Oygenated fuels / Race Fuels? This is what the Help File says: Fuel Density Temperature Coefficients by Fuel type: Fuel Type FDTC (1/deg C) Petrol (Gasoline) 0.00095 Ethanol 0.00109 Methanol 0.00149 Would something like a Sunoco Race Fuel (102 RON, 3.7% Oxygen) have a higher FDTC? Or can we use the Petrol number? Quote Link to comment Share on other sites More sharing options...
Ducie54 Posted February 8, 2020 Report Share Posted February 8, 2020 The Sunoco SDS may have those figures. Quote Link to comment Share on other sites More sharing options...
Grant Baker Posted February 8, 2020 Author Report Share Posted February 8, 2020 Unfortunately not. Quote Link to comment Share on other sites More sharing options...
Ducie54 Posted February 9, 2020 Report Share Posted February 9, 2020 Depending on how accurate you want the results you could use a hydrometer and doing some testing. Quote Link to comment Share on other sites More sharing options...
Adamw Posted February 9, 2020 Report Share Posted February 9, 2020 Before you get too stressed about it, as far as I can think, the fuel density temperature coefficient will only mater if you actually have a fuel temp sensor connected (or flex sensor). So if you don't then it is of little consequence. If you do have fuel temp connected then I would go for the petrol number since the small amount of additives is unlikely to change its bulk properties much (that's just my intuition - no scientific evidence to back that up). Quote Link to comment Share on other sites More sharing options...
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