Search results for query: dilution

Maybe diesel dilution in the sump? Dpf clogged? Egr full?

I’ve got a December 2020 Vw t6.1 kombi. I purchased it when it was a year old so I don’t know what happened in its first year but I’ve had nothing but issues with the ‘reduce oil level, go to workshop’ warning for the past 2 years. I have been to my local Vw dealership a number of times and...

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

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?

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

Oh no, diluted value :eek:

Diesel fuel dilution criteria according to Miller: 2% by volume - caution. 4% by volume - failure. 4% of 7.4L = 296mL. Safe to say that oil is being diluted beyond recognised safe limits and causing accelerated engine wear.

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...

You don’t, safe to say that there will have been some dilution and as 2% is the safe limit who knows. Fuel dilution will probably kill the turbocharger and oil control rings before anything else. If the top end had excessive wear it would be noisy all the time and probably more so when the oil...

The oil is being diluted by either coolant (very unlikely) or diesel (very likely). There is a good deal of information on oil dilution, it's not uncommon and nor is it just a VW issue, it's plagued a lot of JLR Euro6 diesel engines too...

Milton cleaning fluid diluted . seems to clean anything my wife throws at it

2% is the threshold for Caution so it’s definitely time to change.

Miller oil analysis, about £50, will give the fuel dilution and other contaminants in the oil. Data entered in the test info’ must be accurate. Syringe and 1.5m of hose that will fit down the dipstick is needed to take the sample.

all diesel engines used for little mileage will dilute the oil in the sump with diesel. I would change oil every 6 months. However engine not up to temperature will not help with dpf. Starting euro 6 you ll have oil diluted in the sump, clogged dpf, egr failure due to not warming up enough the...

You need to check the oil level yourself when you get this warning. If the level has risen, then your oil is being diluted with diesel, which is not good for the engine. If the oil level has not risen, then it’s more likely to be a software issue. Pete

Don’t worry, it’ll be sorted with the T7(?) when Ford do the engines :p

I had a JLR product that I had to service every 6 months because of oil dilution, so not just VW’s. We gave up in the end, and embraced 1 x dealer service and 1 x non dealer oil change a year. Really hope I don’t run into this with the 6.1 as well!

This is great, I’m going to show vw this as they said mine was around 500ml over it should be

Thanks, I appreciate that there is no time to waste now, I will change it tomorrow. I was more interested what is the long term impact of soot being high until now Also, fuel dilution was just under 1.5% which is considered good enough level.

Wasn’t the 2.7v6 diesel with crankshaft issues? Euro6 tdv6 and 2.0 diesel euro 6 all suffer from oil dilution in the sump and consequent dpf issue Problem never solved by jaguar/Landrover. I have sold my Jag 20d after 16k miles. Light on the dash every 2k miles, oil and filter change. They have...