We have measured the temperature (T) dependences of the electric resistivity, ρ(T), and thespecific heat, Cp(T), of the ferromagnetic full-Heusler compound Ru2−xFexCrSi (1.3 ≤ x ≤ 1.8). ρ(T) shows a metallic behavior (@ρ/@T > 0) for 20 . T ≤ 300 K and nominal upturn at around20 K for all samples. In the low-temperature range, Cp(T) can be described by Debye’s T3 law. Although the coefficient of the lattice part of Cp(T), β, is insensitive for the Fe concentration x,the electronic specific heat part, , decreases with increasing x. The values of the total densities ofstates (Dtotal(EF )) estimated fromwere 12.8, 10.1, and 9.6 states/f.u. eV for x = 1.3, 1.6, and1.8, respectively. The values of majority spin band (D"(EF )) and the minority spin band (D#(EF ))were also estimated usingand the spin polarization P defined by Andreev-reflection experiments.