I found an interesting study that measured the mass of contaminants in oil filters vs mileage for almost 1000 oil filters used in real-world conditions. The used oil filters were mostly from small-displacement gasoline and diesel engines from car dealers and taxi fleets in countries around the world.
The most interesting finding of the study was that 90% of vehicles could travel 30,000 km on an oil filter before it became clogged, if the filter had a dirt holding capacity of 13.4 g. 50% of vehicles could travel 82,000 km before the filter became clogged. The least contaminated filters in the study only picked up 1 gram of contaminants per 60,000 km, so clogging would be expected after these filters were in use for 800,000 km (assuming operating conditions could remain unchanged over this interval).
There was no significant difference between clogging rate between turbo and non-turbo engines, or gasoline and diesel engines. Oil filters from countries with higher ambient dust conditions (Africa, Australia, Middle East, South America) had around 50-100% higher rates of clogging compared to the filters used in Western Europe.
The study is SAE 2012-01-1754: Oil Filter Clogging Rule - Correlation between Mileage and Lab Test Clogging. I don't think the forum rules allow me to post a link to the full study, but if you were to somehow find some sort of online HUB for SCIence papers, you could probably probably post the study title in the search engine and it would pop right up.
The most interesting finding of the study was that 90% of vehicles could travel 30,000 km on an oil filter before it became clogged, if the filter had a dirt holding capacity of 13.4 g. 50% of vehicles could travel 82,000 km before the filter became clogged. The least contaminated filters in the study only picked up 1 gram of contaminants per 60,000 km, so clogging would be expected after these filters were in use for 800,000 km (assuming operating conditions could remain unchanged over this interval).
There was no significant difference between clogging rate between turbo and non-turbo engines, or gasoline and diesel engines. Oil filters from countries with higher ambient dust conditions (Africa, Australia, Middle East, South America) had around 50-100% higher rates of clogging compared to the filters used in Western Europe.
The study is SAE 2012-01-1754: Oil Filter Clogging Rule - Correlation between Mileage and Lab Test Clogging. I don't think the forum rules allow me to post a link to the full study, but if you were to somehow find some sort of online HUB for SCIence papers, you could probably probably post the study title in the search engine and it would pop right up.