Section 1066.145 - Test fuel, engine fluids, analytical gases, and other calibration standards(a)Test fuel. Use test fuel as specified in the standard-setting part, or as specified in 40 CFR part 1065, subpart H, if it is not specified in the standard-setting part.(b)Lubricating oil. Use lubricating oil as specified in 40 CFR 1065.740 . For two-stroke engines that involve a specified mixture of fuel and lubricating oil, mix the lubricating oil with the fuel according to the manufacturer's specifications.(c)Coolant. For liquid-cooled engines, use coolant as specified in 40 CFR 1065.745 .(d)Analytical gases. Use analytical gases that meet the requirements of 40 CFR 1065.750 .(e)Mass standards. Use mass standards that meet the requirements of 40 CFR 1065.790 .