How to change the oil on a 1969 Pontiac GTO Judge?

Model: 1969 Pontiac GTO Judge

Changing the oil on a 1969 Pontiac GTO Judge is a routine maintenance task that every classic car owner should know. Proper oil changes will keep your engine running smoothly and extend the lifespan of your vehicle. Over time, motor oil can break down and become contaminated with dirt and debris, which can harm your engine. If you notice that your engine is running louder than usual or you check the dipstick and the oil appears dirty, it’s likely time for an oil change. Here is how to solve this issue.

Step 1: Gather the Necessary Tools and Supplies

Before you begin, make sure you have the following items:

A wrench set
An oil filter wrench
A drain pan
A new oil filter (compatible with the 1969 Pontiac GTO Judge)
5 quarts of high-quality motor oil (10W-30 is recommended)
A funnel
Paper towels or rags

Step 2: Prepare Your Vehicle

Park your car on a flat surface and engage the parking brake to ensure it doesn’t move during the process. For easier access to the oil drain plug and oil filter, you may want to raise the front of the car using a jack and then secure it with jack stands.

Step 3: Locate the Oil Drain Plug

Underneath the car, locate the oil drain plug on the oil pan. The oil pan is a metal pan that sits at the bottom of the engine, usually towards the center. The drain plug is a bolt located at the edge of the oil pan.

Step 4: Drain the Old Oil

Place the drain pan directly under the oil drain plug. Using the proper-sized wrench, carefully loosen and remove the drain plug. Allow the old oil to drain completely into the pan. This may take a few minutes, so be patient. Once the oil has finished draining, replace the drain plug and tighten it securely.

Step 5: Locate and Remove the Old Oil Filter

The oil filter is usually located on the side of the engine block. It’s a cylindrical object, typically painted white or orange. Using an oil filter wrench, turn the oil filter counterclockwise to remove it. Some oil may spill out, so keep the drain pan underneath to catch any drips.

Step 6: Install the New Oil Filter

Before installing the new oil filter, apply a small amount of new motor oil to the rubber gasket on the top of the filter. This helps create a good seal and makes the filter easier to remove next time. Screw the new filter onto the engine by hand, then give it a final tight turn with your oil filter wrench. Be careful not to overtighten it.

Step 7: Add New Oil

Open the hood of your car and locate the oil cap. The cap is usually located in the engine bay, top center of the engine, and is a round plastic cap with a yellow oil sign on it and a small handle. Remove this cap and place a funnel into the oil fill hole. Pour in the recommended amount of new motor oil (typically 5 quarts for the 1969 Pontiac GTO Judge).

Step 8: Check Oil Levels and Finish Up

After adding the oil, replace the oil cap and start the engine. Let it run for a minute, then turn it off and wait a few minutes for the oil to settle. Check the oil level using the dipstick, which is usually a yellow or orange handle located near the front or side of the engine bay. Pull it out, wipe it clean, reinsert it fully, and pull it out again to check the oil level. It should be between the "min" and "max" marks.

Dispose of the old oil and filter properly by taking them to a recycling center or an auto parts store that offers oil disposal services.

And that’s it! You’ve successfully changed the oil on your 1969 Pontiac GTO Judge. Regular oil changes are crucial to maintaining the health and performance of your classic car.