Volvo Owners Club Forum - View Single Post - General

skyship007 · Jan 28th, 2015, 06:24

Assuming the injection system is OK, then try a Sunday morning motorway session, or use a fuel additive to help reduce the Carbon fouling:
http://www.liqui-moly.de/liquimoly/m...0Schutz_EN.pdf

Another trick is to pre heat the engine during the winter, as most deposits form whilst the engine is warming up. So if you can get a cable to the car, then a simple sump heater will reduce the warm up time by about half. A full coolant pre heater is more expensive and complex to install.

If the EGR valve is clogged up, it can also cause the DPF to foul up faster than normal.

This article from the AA is worth reading if you want to know why I did not buy a Volvo with a DPF:
http://www.theaa.com/motoring_advice...e-filters.html

The combination of DPF rated low ash engine oils (They contain less Zinc based anti wear additives than normal) and fuel contamination from the Regen cycles is not a good one, as it increases main block wear factors. Changing the oil more often and using an x/40 rather than an x/30 helps, although the AA are correct to point out that DPF units are problematic if you only do short trips. Using an oil additive like Ceratec and a high mileage oil (Or a stop leak additive) can help reduce oil consumption if the block is worn and that will help extend the life of the DPF, by reducing ash deposits.

Jan 28th, 2015, 06:24	#2
skyship007 Premier Member Last Online: May 2nd, 2018 08:14 Join Date: Sep 2011 Location: DownSouth	Assuming the injection system is OK, then try a Sunday morning motorway session, or use a fuel additive to help reduce the Carbon fouling: http://www.liqui-moly.de/liquimoly/m...0Schutz_EN.pdf Another trick is to pre heat the engine during the winter, as most deposits form whilst the engine is warming up. So if you can get a cable to the car, then a simple sump heater will reduce the warm up time by about half. A full coolant pre heater is more expensive and complex to install. If the EGR valve is clogged up, it can also cause the DPF to foul up faster than normal. This article from the AA is worth reading if you want to know why I did not buy a Volvo with a DPF: http://www.theaa.com/motoring_advice...e-filters.html The combination of DPF rated low ash engine oils (They contain less Zinc based anti wear additives than normal) and fuel contamination from the Regen cycles is not a good one, as it increases main block wear factors. Changing the oil more often and using an x/40 rather than an x/30 helps, although the AA are correct to point out that DPF units are problematic if you only do short trips. Using an oil additive like Ceratec and a high mileage oil (Or a stop leak additive) can help reduce oil consumption if the block is worn and that will help extend the life of the DPF, by reducing ash deposits. __________________ 2003 V40 1.9TD Mods: Scratches, bent bumpers, raised REAR mats & internal mud guards. SHELL ULTRA 5/40 & LIQUI MOLY CERATEC. Everyone should DYOR (Do Your Own Research) Last edited by skyship007; Jan 28th, 2015 at 07:09.