This Lucas Oil transmission conditioner is another premium product that works on conditioning seals and improving performance. The formula consists of a unique blend of additives that help extend the life of new and old transmissions. It also works incredibly well with all types of automatic transmission fluids both synthetic and conventional. Much like the above-mentioned additives, the Lucas conditioner was designed to reduce shudder and noise, resulting in a smooth and quiet operation. It also conditions seal and improves both oxidation and stability. Lucas conditioner can be used in new and old transmissions found in recreational vehicles and light duty trucks.