Engine warm up or not?

[mojo]

Turn engine over? Best practice for our Euro 6 Merc engine? No driving just warm up. Someone advised that newer engines with a diesel particulate filter could clog up outweighing the benifits. Not a issue for older diesel engines.

 

[Fontie]

Someone asked this recently. It would do more harm than good not doing the DPF any favours

 

[dunnah01]

As Fontie says, DPFs don’t like unburnt diesel on their elements. If you’re fortunate enough to have software to do forced regens then this would work although it would take a while to get the engine hot enough to do the operation. I may do one soon on my Ducato using MES as I’ve only been doing short trips for a few weeks. Trouble is exhaust gets to 600 deg so need somewhere safe to do it

 

[sylvester1954]

Diesel engines suffer with regular driveway startups and particulate filters soon block up.
Take them for a minimum 20 mile round trip keeping the revs high at times. Frequent runs also help the tyres.
If you can't do that then just leave the vehicle alone.

 

[Hettie's Crew]

Ditto what sylvester1954 said.

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[Cheshirecat57]

Ditto above, leave it unstarted OR a midnight stealth blast at high revs
Nowt in between

 

[Spriddler]

 

[dunnah01]

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My lockdown selfie looks the same ??