Cleaning the Lubrication System Before an Oil Change: Necessity or Unnecessary Luxury?
An oil change is one of the most commonly performed maintenance tasks in workshops. Yet it is often forgotten that new engine oil can only perform well in a clean lubrication system. Contaminated oil channels mean that even the best engine oil cannot perform optimally.
How contamination in the lubrication system develops
Even engine oil has its limits. During vehicle use, the following occurs:
- Carbon deposits
- Sludge formation
- Aged oil residues
These contaminants accumulate in:
- Oil channels
- Hydraulic lifters
- Turbo oil supply systems
This buildup happens especially with long service intervals, short trips, and start-stop systems.
Why new engine oil alone is not enough
With a standard oil change, almost always a residue of old oil remains in the system. Additionally, deposits are not removed and can mix with the new oil again. This can lead to:
- Reduced lubrication
- Uneven oil circulation
- Increased wear
New oil in a contaminated system = suboptimal result.
Modern vehicles are more sensitive than ever
Modern engines:
- Have tighter tolerances
- Use thinner oils
- Work with turbochargers and start-stop technologies
Because of this, even slight contamination can noticeably impact:
- Engine operation
- Noise
- Lifespan of components
When is flushing the lubrication system a necessity?
According to the article, lubrication system cleaning before an oil change is recommended in the following situations:
✔ During every preventive maintenance service
✔ For vehicles with start-stop or hybrid drivetrains
✔ With long maintenance intervals
✔ When there are irregular engine running conditions or ticking noises
Flushing before an oil change is not a luxury, but modern maintenance.
Tec4 Oil System Cleaner
The Tec4 Oil System Cleaner Nano-Tec is a professional product designed to:
- Clean the entire lubrication system before an oil change
- Remove sludge and deposits
- Not harm seals
- Optimize the performance of the new oil
Directions for use:
- Add one bottle Tec4 Oil System Cleaner to the old oil
- Let the car run stationary for 30 minutes
- Change the oil and oil filter and add Tec4 Long Life Oil System Cleaner to the new oil
Benefits for the Workshop
✔️ Improved engine performance
✔️ Fewer wear-related issues
✔️ Additional service without extra labor hours
✔️ More value per oil change
Conclusion
An oil change without prior cleaning leaves contamination behind.
By cleaning the lubrication system preventively:
- new oil performs optimally
- the engine’s service life is extended
- you provide customers with demonstrably better maintenance
Would you like to know how to structurally implement lubrication system cleaning in your workshop?
Contact Tec4 for technical advice.