Volvo seem to make dpf's from weird sh1t!
Use A5/B5. Volvo have some of the least troublesome dpfs, even using high saps oil, and, conversely, Tim at Opie was telling me of a customer who used C spec and kept having dpf trouble until he changed back to A/B spec then the problems ceased... Doesn't seem to make sense, and it was only 1 case, but it happened and only the oil was different.
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