Quote:
Originally Posted by SwissXC90
I did the calculations for my D5 powered XC90 and found that the DPF regen normally occurs once around every 1.5 tanks of fuel.
So as long as you do a motorway drive of at least 30min for every tank of gas, your car will always regenerate happily.
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Not necessarily true I'm afraid, it's not that simple. The DPF will only regenerate once you're beyond a certain soot level. I'm averaging one Regen per one tank of fuel, the list of criteria in my original post is straight from VIDA and therefore your journeys and driving styles are a big factor. You seem to have found a sweet spot with your commutes.
For many of us the lure of £30 a year road tax, 64mpg and 0-60 in 6.7 seconds is too strong and we must learn to understand our DPFs more intimately.