SPECTRA XTREME CK-4 15W-40

• Provides superior protection against deposit formation, oil breakdown, parts wear, and loss of compression.
• Synthetic blend formula engineered for extended drain intervals.
• Superior thermal stability for higher temperature operation.
• High V.I. number provides stable viscosity over a wide temperature range
• Superior cold cranking and oil pumpability at low temperature.

Compatible with: Synthetic, synthetic blend, and mineral based motor oils. Gasoline or diesel engines or combustion engines which have been converted to natural gas.

Not compatible with 2-cycle gasoline engines that mix oil with fuel.