Average Wear
Reference Guide
This page shows standard wear references — useful for a general comparison. But for a personalised result for your exact vehicle, the AI scan gives you a full engine health report in about two minutes.
Free · Results in ~2 minutes · No tools needed
The Standard Engine Guide
Use this reference to understand what a baseline healthy engine looks like — then compare your blow-by result against it.
Average Wear
Mileage estimates based on standard gasoline engines.
0 - 80k Miles
There should be no visible green. Brand new vehicles with 0 miles can still pull a teal color.
80k - 120k Miles
Average wear will start pulling more green color however it should be a darker green. A well maintained vehicle can still pull a teal color.
120k - 160k Miles
Average wear will start pulling in the yellows which creates the lighter green color. A well maintained vehicle in this range can pull a dark green color.
160k+ Miles
Noticeable wear begins over 160k miles, though well-maintained vehicles may still pull green. Yellow indicates the engine is nearing the end of its life.
*Please refer to our terms and conditions. Test results are provided for informational purposes only and are not a substitute for professional diagnosis, advice, or servicing. Results should be used as a guide in conjunction with other diagnostic methods. We do not assume liability for any decisions, repairs, or outcomes based on the use of this test.
How Blow-by Works
Hover over each chart to zoom in. Tap a chart to view it full-screen.
Find out where your engine stands
Use our AI fluid scan to get a full wear report for your specific vehicle in about two minutes.
Click to have your test scanned by AI