Search results for query: oil dilution

It’s fine to switch off once the revs drop to normal. This negates the risk of oil dilution due to fuel from the regen. Next time you drive the van it will carry on with the regen. I have checked this many times since the tech told me using vcds and mostly VAG DPF. Edit: Idling does not...

Exactly that.

Search with ‘oil level’, it’s a known issue, possibly due to fuel dilution. If it is due to fuel dilution you need to act to prevent engine damage.

I bought new 71 cali came with reduce engine oil light on apparently software issue open bonnet close it was told this just resets it i believe this van has only covered 11700 miles so I have took to vw 4/5 times for this problem they have taken oil out of this van twice while under warranty...

This explains it better than I could… Oil dilution - diesel in oil and petrol in oil.

Just because the warning light doesn’t illuminate doesn’t make everything OK. If the oil is black / brown (no water emulsification) and the oil level is rising without anybody adding oil it is due to fuel dilution. Fuel dilution at just 2% will damage an engine / turbochargers. Have a search...

...I've stopped, it interrupts the regen and the revs drop from the regen 1000rpm to the normal 800rpm then wait another 30 secs or so. This means what I turn off the van isnt injecting diesel so reduces the risk of oil dilution. The van completes the regen as soon as I set off on the next journey.

Some how get the EGR disabled. Oil service at no more than 8000 miles, even with the EGR disabled the soot level will be close to the Caution threshold by this point. (Based on my 180 ps analysis). Oil analysis every 4th oil service. Don’t use for short journeys. Monitor the DPF status with...

...change, truth is I never checked it after the service or up until now. So it might of been overfilled since then. Or it's the dreaded oil dilution from regens. I've booked it in immediately for an oil change and new filter, and it won't be driven until then. My question is, should I sent...

...a service I remove between 400 and 500 ml of oil through the dipstick tube to reduce it down to halfway. Initially I was worried about oil dilution so I sent a sample to Miller's for oil analysis, no worries from the results. I'm lucky my van doesn't use oil, I'm sure it's just oil...

It doesn't occur. Excessive dilution is all but unheard of on these. The warning messages are simply a case of garages brimming the oil to the top mark on the dipstick or even beyond. Sooner or later this upsets the sensor. Once the oil level is reduced to around the halfway mark the warning...

For that price you need to ask what you are getting, injectors, pumps and valves should be overhauled in a clean room as the operating clearances are mere microns, they then need to pass a stringent test procedure. For £144 inc VAT I suspect the outcome won’t be good. A failed injector can bore...

From reading this, I would certainly want to change the oil if it has been diluted by fuel. To not do so risks excessive engine wear by the sounds of it. So why are dealers just siphoning off the excess? @Ian Watt, what did VW assist say?

Welcome to the Forum, there's plenty on here about oil dilution and DPF issues!

Kind of what I’m doing currently to be honest. Pre-empting at the moment as my regen frequency is the biggest red flag indicating it’s getting blocked. But such frequent regens also bring their own problems right? Like a rather unreasonable MPG and oil dilution?

Where did you got a brand new engine and how much did it cost? Also did the new engine come with any upgraded parts? How can we know that if we invest in a new engine or a rebuild this issue won't happen again in 50 k km ?

Have a Search with ‘dilution’. Plenty of content on the Forum. If your oil level is rising without anybody adding oil there are two possibilities: 1. Coolant contamination - emulsified oil, obvious. 2. Fuel dilution - not obvious at all and with a 2% diesel contamination limit before accelerated...

Bit more from Gemini AI premium The conflict between "official technical specifications" and "real-world dipstick readings" for the T6.1. For your specific CXHA engine with the 4BH code, the technical data is clear, but the implementation is where it gets tricky. Why the Two Figures Conflict...

Aye, any higher than halfway and mine starts lying through its teeth. Im happy im not suffering any oil dilution and the level remains rock steady, so,I just ignore the occasional warning. There is apparently a software fix but feedback is that it doesnt always do the trick anyway, so knowing...

No. If you stop the engine whilst it is doing a regen then it will leave extra unburnt diesel in the cylinders. This then drains past the piston rings and cause fuel dilution of the engine oil. Better to go for a drive until the regen stops or at least to wait until the revs drop to a normal...