The density ρ(0p s , , or T x ) of 1-butanol and Diesel B0 fuel blends at ambient and saturated pressures and temperatures at T = (253.15 to 468.15) K were measured using an Anton Paar DSA 5000M, DMA 4500, DMA HPM and SVM 3000 vibration tube densimeters of Anton Paar company with an estimated average ρ/ρ = ±0.03 % deviation. The reason of using various densimeters were discussed. The obtained values were fitted to the following polynomial equation. The excess molar volumes E V m /cm3·mol-1 of 1-butanol and Diesel fuel blends were calculated.

The constant pressure specific heat capacity ( , , ) 0 or c p T x p s /Jkg-1K-1 of 1-butanol and Diesel fuel blends at temperatures T = (253.15 to 468.15) K are reported with an estimated average cp/cp = ±0.5% deviation. Measurements were carried out using a Perkin Elmer’s Pyris 1 differential scanning calorimetry (DSC). The excess heat capacity ( , , ) 0 or c p T x s Ep/Jkg-1 K -1 of 1-butanol and Diesel fuel blends were calculated. Polynomial equation as a function of temperature was used for the fitting of measured data,

The vapour pressure of 1-butanol and Diesel B0 binary fuel blends were investigated at temperatures ranging from 274.15 to 468.67 K, using the two different setups with static method. The measured values were fitted to the Antoine, polynomial and Clausius–Clapeyron type equations. The heat of eva poration of mixture have been determined from the vapour–liquid equilibria data.