Very black under rocker cover...

tom1979 said:

Yep it comes straight off but it's a job to wash off your hands. Horrible stuff whatever it is.

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Have a look at forte engine flush mate, you would need two bottles, would take years to clean that off by just changing the oil

Discodevon said:

Have a look at forte engine flush mate, you would need two bottles, would take years to clean that off by just changing the oil

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Is that better than the others? I can get this for under £3 as we're a Comma stockist!

Might actually give this a try too, has anyone used this flushing oil on a Td5 ?

saxavordian said:

I wouldn't show the picture of oily engine block to a effeminate just stop oil protesters. They probably hyperventilate.

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Maybe they will clean it up for you

Cheap oil + 1 litre of diesel, idle for a few minutes, drain and refill with new oil.

tom1979 said:

Is that better than the others? I can get this for under £3 as we're a Comma stockist!
View attachment 296814

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Not sure mate but I used forte engine flush in mine (2 bottles) when first got it in 2016 and it’s still running beautifully but it’s important not to rev the engine apparently

lynall said:

Cheap oil + 1 litre of diesel, idle for a few minutes, drain and refill with new oil.

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My mate did this on an old pd130, worked an absolute treat

1988smithy said:

My mate did this on an old pd130, worked an absolute treat

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Its a tip I picked up many moons ago that was used to cure sticky tappets in K series engines, will it did not actually cure them it flushed the crap out and the fresh oil cured the noise.
I have used it a few times myself with great success.

Driving home last night I had a bit of a thought... I remember quite a while ago mentioning on here about the lower temp thermostat I had fitted (78 or 82*C one) and @sierrafery commented that it might not be such a good idea. I wonder if running it at that temp for a year would have contributed to the build up of dirt?

sierrafery said:

what's "normal" for you? and the consumption? a td5 at 80 - 81 is running "rich" unless it's remapped for that kind of ECT/FT, .... NORMAL RUNNING TEMP for Td5 is 90*C. Believe me or not

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Hi, i really dont know if that can be th reason or not... what's certain is that at lower ECT/FT it gets more fuel and the EGT is higher.... i dont remember, did you say something about consumption then?