DPF lifespan?
Hypothetical question: If driven in the absolute WORST possible way for a DPF filter, how long would it take for a brand new DPF (DNPR in Toyota speak) to clog up with ash/soot? I asked this question of Toyota - they didn't know and my dealer though 25000 miles, which sounds a tad optimistic.
Asked on 15 June 2015 by Peterjn7
Answered by
Honest John
There are two ways that DPFs get choked. The first is by soot, primarily from too many short runs from cold starts especially in winter and for a new car that can be in as little as 1,000 miles. The second is by ash in a well used diesel vehicle where the ash can take 65,000 - 120,000 miles to block the DPF after which it may be possible to clean it out using the Ceramex process, or the vehicle may need a new OEM DPF.
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dpf life
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