I understand the low cetane content in some fuel. Is the normal dieseling noise that appears when we don't use an additive damaging to our motors in any way? Is the noise purely an esthetic concern or a lack of power, mileage, smoke concern. At work there are a couple of new v8 turbo diesels that clatter like a you know what, no additives. I stopped using additives awhile back only because I ran out and haven't replenished(though of course I will use again when the temps drop) and now my little 240d sounds like the big v8 clatterers. Is this a bad thing?

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1981 240d
Newport,RI