Phillips 66® new turbine oils are formulated for superior protection against oxidation, sludge, and varnish. By combining quality base oils with highly effective additives, we've created some of the highest-performing turbine oils in the industry. Some of the most significant changes include improved RPVOT retention, water separation, varnish and sludge protection, rust and corrosion reduction, and foam and entrained air release. | We put Phillips 66 turbine oils to the test against leading industry competitors. The following test results proved that Phillips 66 dramatically outperforms other turbine oils in industry standard tests.