diff --git a/src/equations/compressible_euler_quasi_1d.jl b/src/equations/compressible_euler_quasi_1d.jl
index 85df00b24e..331f88baf2 100644
--- a/src/equations/compressible_euler_quasi_1d.jl
+++ b/src/equations/compressible_euler_quasi_1d.jl
@@ -81,8 +81,8 @@ function initial_condition_convergence_test(x, t,
     RealT = eltype(x)
     c = 2
     A = convert(RealT, 0.1)
-    L = convert(RealT, 2)
-    f = 1 / L
+    L = 2
+    f = 1.0f0 / L
     ω = 2 * convert(RealT, pi) * f
     ini = c + A * sin(ω * (x[1] - t))
 
@@ -110,18 +110,18 @@ as defined in [`initial_condition_convergence_test`](@ref).
     # Same settings as in `initial_condition_convergence_test`. 
     # Derivatives calculated with ForwardDiff.jl
     c = 2
-    A = 0.1
+    A = convert(RealT, 0.1)
     L = 2
-    f = 1 / L
-    ω = 2 * pi * f
+    f = 1.0f0 / L
+    ω = 2 * convert(RealT, pi) * f
     x1, = x
     ini(x1, t) = c + A * sin(ω * (x1 - t))
 
     rho(x1, t) = ini(x1, t)
-    v1(x1, t) = 1.0
+    v1(x1, t) = 1
     e(x1, t) = ini(x1, t)^2 / rho(x1, t)
-    p1(x1, t) = (equations.gamma - 1) * (e(x1, t) - 0.5 * rho(x1, t) * v1(x1, t)^2)
-    a(x1, t) = 1.5 - 0.5 * cos(x1 * pi)
+    p1(x1, t) = (equations.gamma - 1) * (e(x1, t) - 0.5f0 * rho(x1, t) * v1(x1, t)^2)
+    a(x1, t) = 1.5f0 - 0.5f0 * cos(x1 * pi)
 
     arho(x1, t) = a(x1, t) * rho(x1, t)
     arhou(x1, t) = arho(x1, t) * v1(x1, t)
@@ -143,7 +143,7 @@ as defined in [`initial_condition_convergence_test`](@ref).
     du2 = darhou_dt(x1, t) + darhouu_dx(x1, t) + a(x1, t) * dp1_dx(x1, t)
     du3 = daE_dt(x1, t) + dauEp_dx(x1, t)
 
-    return SVector(du1, du2, du3, 0.0)
+    return SVector(du1, du2, du3, 0)
 end
 
 # Calculate 1D flux for a single point
@@ -240,17 +240,17 @@ Further details are available in the paper:
     #     log((ϱₗ/pₗ) / (ϱᵣ/pᵣ)) / (ϱₗ/pₗ - ϱᵣ/pᵣ)
     #   = pₗ pᵣ log((ϱₗ pᵣ) / (ϱᵣ pₗ)) / (ϱₗ pᵣ - ϱᵣ pₗ)
     inv_rho_p_mean = p_ll * p_rr * inv_ln_mean(rho_ll * p_rr, rho_rr * p_ll)
-    v1_avg = 0.5 * (v1_ll + v1_rr)
-    a_v1_avg = 0.5 * (a_ll * v1_ll + a_rr * v1_rr)
-    p_avg = 0.5 * (p_ll + p_rr)
-    velocity_square_avg = 0.5 * (v1_ll * v1_rr)
+    v1_avg = 0.5f0 * (v1_ll + v1_rr)
+    a_v1_avg = 0.5f0 * (a_ll * v1_ll + a_rr * v1_rr)
+    p_avg = 0.5f0 * (p_ll + p_rr)
+    velocity_square_avg = 0.5f0 * (v1_ll * v1_rr)
 
     # Calculate fluxes
     # Ignore orientation since it is always "1" in 1D
     f1 = rho_mean * a_v1_avg
     f2 = rho_mean * a_v1_avg * v1_avg
     f3 = f1 * (velocity_square_avg + inv_rho_p_mean * equations.inv_gamma_minus_one) +
-         0.5 * (p_ll * a_rr * v1_rr + p_rr * a_ll * v1_ll)
+         0.5f0 * (p_ll * a_rr * v1_rr + p_rr * a_ll * v1_ll)
 
     return SVector(f1, f2, f3, zero(eltype(u_ll)))
 end
@@ -277,13 +277,13 @@ end
     e_ll = a_e_ll / a_ll
     v1_ll = a_rho_v1_ll / a_rho_ll
     v_mag_ll = abs(v1_ll)
-    p_ll = (equations.gamma - 1) * (e_ll - 0.5 * rho_ll * v_mag_ll^2)
+    p_ll = (equations.gamma - 1) * (e_ll - 0.5f0 * rho_ll * v_mag_ll^2)
     c_ll = sqrt(equations.gamma * p_ll / rho_ll)
     rho_rr = a_rho_rr / a_rr
     e_rr = a_e_rr / a_rr
     v1_rr = a_rho_v1_rr / a_rho_rr
     v_mag_rr = abs(v1_rr)
-    p_rr = (equations.gamma - 1) * (e_rr - 0.5 * rho_rr * v_mag_rr^2)
+    p_rr = (equations.gamma - 1) * (e_rr - 0.5f0 * rho_rr * v_mag_rr^2)
     c_rr = sqrt(equations.gamma * p_rr / rho_rr)
 
     λ_max = max(v_mag_ll, v_mag_rr) + max(c_ll, c_rr)
@@ -294,7 +294,7 @@ end
     rho = a_rho / a
     v1 = a_rho_v1 / a_rho
     e = a_e / a
-    p = (equations.gamma - 1) * (e - 0.5 * rho * v1^2)
+    p = (equations.gamma - 1) * (e - 0.5f0 * rho * v1^2)
     c = sqrt(equations.gamma * p / rho)
 
     return (abs(v1) + c,)