Bad driving habits will surely take their toll on the engine sooner than you expected. A stop-and-go kind of driving, for one, can prevent the engine oil from doing its job completely, causing oil particles to become deposits in the engine. These deposits can build up over time, resulting in restricted oil flow.
Engine flushing can be done to get rid of these deposits and clean the oil passages for unrestricted flow of the engine's much-needed motor oil. However, it isn't advised on all types of engines, especially on the units modern vehicles come equipped with. So before doing an engine flush, find out first if your vehicle's engine really needs it or not.
If you own an older-model vehicle and you're sure that you'll benefit if you have your engine flushed, here are the steps on how to flush and how to change motor oil properly:
What you'll need:
- Wet rags
- Paper towel
- Engine oil flush
- 2 oil filters
- Container (for used oil)
- Wheel ramps (when necessary)
- Motor oil (recommended by the auto manufacturer)
Step 1: Prepare the vehicle.
Park the vehicle in a solid, level ground, in a place where you can work comfortably. Warm up the vehicle by starting the engine and allowing it to run for 10 to 15 minutes. Ensure safety by engaging the parking brake. Once the engine has warmed up, turn the car off.
Step 2: Replace the oil filter.
Prop up the hood and find the oil filter. With a wrench, loosen the filter and take it out. Put the new oil filter in place, leaving the used oil in the crankcase.
Step 3: Add engine oil flush to the used oil.
Read the instructions at the back of the bottle and pour the required amount of engine oil flush. A 5-quart engine usually requires about a bottle of oil flush.
Step 4: Run the engine.
Start the engine again and allow it to run for around 30 minutes before shutting it off.
Step 5: Drain used motor oil.
Put your tools down where you can easily access them from underneath the vehicle. Get under the vehicle on your back. If your size won't allow you to work comfortably underneath, you can use wheel ramps.
Find the oil drain plug at the bottom of the oil tank. It usually looks like a large bolt. Once you've located it, put the container underneath and loosen the drain plug using a wrench. Remove the plug and allow the oil to dry completely. This will take around 10 minutes.
Put the drain plug back in place and tighten it with a wrench.
Step 6: Install a new oil filter.
Replace the oil filter that you've just installed a while ago. Refer to step 2 for the instructions.
Step 7: Fill the oil tank with the recommended motor oil.
Loosen and remove the oil tank cap. Take the dipstick out. Pour engine oil into the tank, one quart at a time. Make sure to use the engine oil recommended in your user's manual.
With a paper towel, wipe the end of the dipstick and dip it into the oil tank to be sure that the oil level inside the tank is now on the .full. line. Add more motor oil if there's a need to.
Step 8: Dispose used oil properly.
Get your oil recycling container, cover it, and take the used oil to the gas station or mechanic nearby that can properly dispose the oil for you.