How-To: A Guide to Cleaning and Protecting Your Car’s Crankcase and Engine Oil System

How-To: A Guide to Cleaning and Protecting Your Car’s Crankcase and Engine Oil System

The best feeling hits during those smooth drives, when you’re confident about the maintenance and care you’ve given to your vehicle.

Our fellow car gurus know the importance of keeping a car’s exterior pristine, as well as the engine inside!

Front End Close-Up, Luxury Automobile

So are you ready to tackle the dirt and grime that has built up in your crankcase and engine oil system?

This post will teach you why it is essential to flush your engine and how to keep your crankcase and engine oil system in tip-top shape. We promise it is not as intimidating as it sounds.

What is an engine flush?

Just as it sounds, an engine flush is a solution to flushes out your engine, breaking down the grease and grime accumulation in your engine oil system. As you can imagine, grease and grime build-up is not a good thing. When there is oil deposit buildup in our engine, your car cannot perform optimally.

If it’s been a while since your last routine oil change, look out for these many symptoms of oil deposits:

  • > Difficult Start
  • > Misfiring
  • > Bad Oxygen Sensors
  • > Engine “Too Hot”
  • > Low Oil Indicator Light


crankcase and engine oil system

Here are the top 3 reasons why it is important to flush out your crankcase and engine oil system:

1: It keeps your engine parts clean.
Unless you have a brand new, low-mileage vehicle, it is important to keep your engine parts clean to keep them running smoothly. The more dirt and gunk that accumulates, the less efficient they will be, causing decreased fuel efficiency and less power. 

2: It keeps your new oil clean.
Whenever you get an oil change, the old oil from your engine is drained, and new oil is added. If you do not flush your tank, junk that builds up will contaminate your new oil, which causes the new oil to be just as dirty as the old oil. If you flush your engine regularly, you can even go longer between oil changes since your oil stays cleaner, longer. 

3: It helps give older cars a fresh start.
If you have a high-mileage vehicle that has not been well maintained, it is a good idea to give it an oil flush followed by an oil change. This will help the car run smoother and could save you from issues in the future. We recommend our special
B-60 High Mileage Oil System Rejuvenator for high-mileage vehicles, which cleans and protects the crankcase and engine oil system of all gas-powered vehicles, including those exceeding 60,000 miles. It conditions and revitalizes seals and gaskets to help stop engine oil leaks.


So what’s the cleaning process?

Now that we have discussed the benefits of flushing your engine, let’s get to it! 

The process is simple. Just follow these steps and your engine oil system and crankcase will be clean in no time.

  1. – Make sure your engine is warm.
    You will want to make sure that you flush your engine on a warmer day, or if you live in a state notorious for cool weather, you might want to do this on a warm day to ensure your engine stays warm.
  2. – Add one of our Berryman Oil System Rejuvenators directly to your engine oil.
    See product recommendations and application information/guidance.
  3. – Drive or leave your car idle for 15 minutes to work the solution through the engine.
    While the solution does the hard work of cleaning up grease, grime, deposits, and dirt from your engine oil system.
  4. – Drain and replace the oil filter.
  5. – And finally, it is time to replace your engine oil with fresh, clean oil. 


The longevity of your engine relies on engine flushing. Keep your engine clean with either our Berryman Oil Change Flush for vehicles under 60,000 miles or our B-60 High Mileage Oil System Rejuvenator for vehicles over 60,000 miles. 


Berryman Products