Ultra Premium exceeds the performance requirements for API Service Categories SL, SH, SG and SJ in fuel economy, oil consumption/emissions system protection, oxidation control and high temperature piston deposits, as it is blended from hydro-treated base oils and an advanced additive package.

Ultra Premium is highly resistant to viscosity and thermal breakdown and allows for extended periods between oil changes. nt to viscosity and thermal breakdown and allows for extended periods between oil changes