Uh.... it wasn't the oil filter causing the problem. It was the air filters. And the problem WAS quite serious. The carbon detected was 42 times the acceptable level.
You also ask "how long would the engine have lasted if it had gone undetected"? Well, not as long without needing some kind of internal repair for damage caused by the excessive dirt. If you want a figure...... let's say under 50,000 kilometers (a guess).
Again, I think it shows the benifits of oil analysis testing. It may cost some money ($19.95), but it saves money, time, and heartache.
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Andrew
2009 370Z Sport/Touring 6MT sold
2013 Honda Civic Si coupe D/D
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