I USE PENZOLL 25-50 RACING OIL NOT THE SAME AS REG 20-50
Pennzoil® Racing Motor Oil
Available Grades include:
SAE 50, SAE 60, 25W-50
Pennzoil® Racing Oil is designed for the lubrication of high-performance competition engines. It is fortified with superior additives and oils which resist breakdown under the high loads, temperatures and speeds experienced by fast-revving engines.
Benefits:
Pennzoil® Racing Motor Oil offers maximum protection for competition engines. Available in three viscosity grades, it is recommended for supercharged, turbocharged and naturally aspirated engines that use racing gasoline or other exotic fuels (including methanol or nitromethane).
Compounded especially for racing engines.
Maximizes obtainable horsepower.
Can be used with a variety of competition fuels.
Suitable for use in most competition engines.
SAE 25W-50 provides outstanding low-temperature service when a proper low-RPM warm-up period is not possible.