You can add this to a conventional or synthetic in your manual transmission to help with the shifting. And also quiet the transmission lucas oil pure synthetic stabilizer. It works.

Lucas Oil Products, Inc. is an American manufacturer and distributor of automotive oil, additives, and lubricants.

A: It is recommended that you add the Oil Stabilizer with every oil change (20% Stabilizer, 80% Oil). You may also use the stabilizer to top off between oil changes in order to help reduce oil consumption in an older engine, or maintain peak performance in a new engine.

In newer vehicles and those with basic engine wear, use one-quart stabilizer in each oil change, or 20% of the total volume. Use in every oil change.

By helping to protect engine parts and stabilizing the oil with an additive that helps keep it from losing viscosity as quickly, you can get more out of each oil change before it's time to go through your maintenance cycle again.

And your lawnmower. It prevents fuel degradation over long periods of time. So this is how it works you pour it in the fuel.

Badly worn engines can benefit from a product ratio of 60 to 100% to delay or eliminate complete overhaul. Lucas High Mileage Oil Stabilizer helps to control blow-by, dry starts and oil burning - maximizing efficiency, reducing harmful emissions and extending oil life.

Lucas Low Viscosity Stabilizer is a premium, synthetic engine oil treatment that improves performance in four key areas. Wear reduction for the life of your engine. Friction Reduction, for fuel economy and power.

Since Lucas Heavy Duty Oil Stabilizer is 100% petroleum, it can safely blend with all other automotive lubricants including automatic transmission fluid, mineral oil, petroleum oils, and synthetic oils. As an added benefit, it can be used with every oil change and safely extends oil life 50% longer.

Perfect for use in new equipment that requires synthetic oil or any equipment that needs enhanced performance. Protects new and used heavy duty and high-performance transmissions, gear boxes, and engines. Use with synthetic and non-synthetic oils.

Badly worn engines can benefit from a product ratio of 60 to 100% to delay or eliminate complete overhaul. Lucas High Mileage Oil Stabilizer helps to control blow-by, dry starts and oil burning - maximizing efficiency, reducing harmful emissions and extending oil life.

In newer vehicles and those with basic engine wear, use one quart stabilizer in each oil change, or 20% of the total volume.