Excessive oil usage and the DPF

[Welshy1988]

Originally Posted by Kev0607

Just cruise along in 6th gear at 70mph. You need to bring the car on a long enough drive though to heat up the exhaust/DPF to clear the soot.

20 minutes at constant speed on the motorway should be fine. No less than 20 minutes.

More importantly, you need to do regular motorway drives in a diesel with a DPF to keep it happy. Short journey's will clog the system.

So took it for a good drive last night, still shows soot filter full aswell as "Engine System service requried" light.

Must have been driving for 40 mins at 70mph in 6th gear.

Is it worth doing same in 4th or 5th gear to give a bigger blast out?

Car has had a forced regeneration previously.

[Kev0607]

Originally Posted by Welshy1988

So took it for a good drive last night, still shows soot filter full aswell as "Engine System service requried" light.

Must have been driving for 40 mins at 70mph in 6th gear.

Is it worth doing same in 4th or 5th gear to give a bigger blast out?

Car has had a forced regeneration previously.

Normally a good motorway blast clears the foot filter message. I suppose for what its worth, you could try dropping to 5th gear and doing the same drive again to see if it makes a difference. If it doesn't then something else is wrong.

"Engine system service required" could literally mean anything. It needs reading with diagnostics to find out what the fault code is.

[GrahamBrown1]

If there is a fault logged then sometimes the car will not allow a regen. Such as egr or dpf faults. I would get the faults read first as if the car is not regening then you are only filling the filter with more soot. If the filter gets to full it won’t even allow a forced regen and has to be replaced.