Q: How do I use Lucas Oil Stabilizer in my vehicle?
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.

Q: How many miles do I need to have on my vehicle before I can start using Lucas Oil Stabilizer?
A: Use it in new engines after your factory recommended break in period. Put in a quart each time you change the oil in your car. You should be able to go at least 50% longer between oil changes and your engine will last much, much longer.

Q: Can I use Lucas Oil Stabilizer in anything else in my vehicle besides my engine?A; Yes, In addition to being great for your engine, you can also mix it 25% / 75% in a manual transmission and 50% / 50% in the differential. Lucas Oil Stabilizer blends with any petroleum-based or synthetic oil, and is formulated for gasoline or diesel engines.

Q: Heavy Duty Oil Stabilizer seems pretty thick, Can I use it in my small car that requires light weight oil?
A: In newer and smaller vehicles that require light weight oils such as 5W-30, we recommend our Pure Synthetic Oil Stabilizer. Pure Synthetic Stabilizer was developed specifically for engines that run on lighter weight engine oils and in newer vehicles.

Q: Will using Lucas Stabilizer void the factory warranty on my new vehicle?
A: No, using Lucas Stabilizer will not void a new car warranty. Stabilizer is a product that will blend with both synthetic and non-synthetic oils.

Q: Will using Lucas Stabilizer void the factory warranty on my new vehicle?
A: No, using Lucas Stabilizer will not void a new car warranty. Stabilizer is a 100% petroleum product that will blend with both synthetic and non-synthetic oils.

Q: Can I use Pure Synthetic Oil Stabilizer in non-synthetic oil?
A: Yes, contrary to common belief, you can mix synthetic and non-synthetic oil. A common reason for doing so is if your vehicle requires a light weight oil like 5W-30. Pure Synthetic Stabilizer was developed specifically for engines that run on lighter weight engine oils and in newer vehicles.

Q: Can I use Lucas Oil Stabilizer in anything else in my vehicle besides my engine?
A: Yes, In addition to being great for your engine, you can also mix it 25% / 75% a manual transmission and 50% / 50% in the differential. Lucas Oil Stabilizer blends with any petroleum-based or synthetic oil, and is formulated for gasoline or diesel engines.

Q: Is your "Upper Cylinder Lubricant with Injector Cleaners" the same as "Lucas Fuel Treatment"?
A: Yes, the Upper Cylinder Lubricant with Injector Cleaners is the offical name for the product that most people refer to Lucas Fuel Treatment.

Q: Is this product made for gasoline or diesel engines?
A: Lucas Fuel Treatment was designed to clean and lubricate the fuel systems of both gasoline and diesel engines.

Q: How often can I use Lucas Fuel Treatment?
A: Since Lucas Fuel Treatment does not contain any solvents it is perfectly safe to run with every fill up. In fact, many of our users run our fuel treatment with every tank because they see an improvment in fuel mileage. The savings can be so great that in some cases the money you save in fuel pays for the product and then some.

Q: Will the Lucas Power Steering Stop Leak correct the squealing and hard spots in my steering?
A: Yes, the Lucas Power Steering Stop Leak will correct squealing and hard spots and fix most seal leaks in a worn rack and pinion. You can also use the Power Steering Stop Leak in new units to prevent wear.

Q: I noticed that your Power Steering Stop Leak says "Guaranteed" on the bottle. What do you mean?
A: We believe so strongly in our Power Steering Stop Leak that we guarantee it will stop your leaking power steering unit or your money back!

Q: My leak is getting better, is it safe to use more than one bottle of Power Steering Stop Leak?
A: Yes, in some cases two bottles may be required to stop a seal leak in your power steering unit.

Q: My power steering unit is cracked. Will Power Steering Stop Leak still work?
A: No, Lucas Power Steering Stop Leak is effective on seal leaks. Leaks resulting in physical damage to power steering units will require attention from your certified mechanic.

Q: How should I use Lucas Transmission Fix?
A: We recommend adding a bottle of Lucas Transmission Fix each time you change your transmission fluid (approximately every 30-40,000 miles), or adding a bottle to your current fluid to fix a small leak.