Motor Oil Info

AMSOIL Synthetic 15w-40 Diesel and Marine Oil maintained exceptional lubrication properties for the duration of the 983-hour drain interval. It maintained viscosity better than Shell Rotella T did, Measuring 12.33 centistokes (cSt) when drained. Shell Rotella T, on the other hand, measured 10.17 cSt after its 239-hour oil drain interval.

AMSOIL Synthetic Diesel Oil demonstrated superior shear stability over an extended drain interval, even in severe service. AMSOIL 15w-40 Synthetic Diesel Oil shows a stable trend over the extended service period, well beyond the OEM-recommended drain interval.