Print

Please login or register.
1 Hour 1 Day 1 Week 1 Month Forever
Login with username, password and session length

[Marks DTM Calib]

Why are modern derv drinkers affected this way when older generation derv are not?

Seems a backward  step to me.

Its all about emissions me good Lord Opti.

Of course older cars which were not subject to said legislation ......

I wonder how much NOx and particulates are emitted when running an old TD on veggie oil compared to Derv?     

Surely............when the filter is super-heated, all the shit that has built up is released anyway. 

Nope, so the DPF traps the particulates (which are mainly un-burnt 'bits'), when the regen starts the DPF gets heated to close on 600 degC at which point trapped stuff burns resulting in mainly ash (and not all of this leaves via the exhaust hence why DPFs have a finite life).

On the NOx side, a reaction takes place in the catalyst (or the Urea on the 'Blue' setups) which reduces it to a less harmful product.