Instructions to Stop an Engine Oil Leak With Lucas

Updated March 23, 2017

Lucas Engine Oil Stop Leak is an automotive product designed to help older or higher mileage vehicles maintain their oil level. As engines age, worn seals can cause them to burn off an excessive amount of oil or leak oil. According to Lucas, the product can help reduce or eliminate the amount of oil burning or leaking. It needs to be added when you change the oil on your vehicle.

Drain the oil, and change the oil filter on your vehicle like you normally would. This will vary depending on the make, model and year of your vehicle.

Multiply the engine oil capacity by 20 per cent (.20) to determine how much Lucas Engine Oil Stop Leak you need to use. For example, if the oil capacity is 6 quarts, you would need to use 1.2 quarts of Lucas, since 6 x .2 = 1.2.

Subtract the amount of Lucas you will be using from the engine oil capacity to determine how much oil you will be using with the Lucas. You don't want to overfill the oil pan. Continuing the example, 6 - 1.2 = 4.8. So, if your engine holds 6 quarts of oil, you would use 1.2 quarts of Lucas and 4.8 quarts of oil.

Pour the recommended amount of Lucas Engine Oil Stop Leak into the funnel. Allow it to pass through the funnel into the engine. Pour the oil into the funnel, and allow it to pass through the funnel as well. Remove the funnel, and replace the oil cap.

Drive the vehicle as you normally would. Monitor the engine oil level every few days to ensure the engine is no longer leaking or burning oil.


The owner's manual for your car should list how much engine oil it holds. Most auto parts stores can also look that up for you when you purchase the products for your oil change as well.

Things You'll Need

  • Shop towel
  • Engine oil (optional)
  • Funnel
  • Replacement oil filter
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Leonardo R. Grabkowski has been writing professionally for more than four years. Grabkowski attended college in Oregon. He builds websites on the side and has a slight obsession with Drupal, Joomla and Wordpress.