Search results for query: oil dilution

Fuel dilution acceptable limit is 2% so I would get the oil and filter changed asap (if it were still running). You have 12000 miles entered as the oil mileage at the time of sample, is this correct? Seems odd to have such a round number. Without higher iron and alum’ content it would indicate...

...as possible and it seemed reasonable that a contributory factor was 'oil expansion'..... Frothing, perhaps? This does not discount the oil dilution with diesel fuel but as stated, may be a contributing factor? I generally cover a ratio of about 70% shorter journeys. I have never noted a...

It would be more likely that repeated failed regeneration would result in dilution of the oil.

There’s a very good chance that poor oil quality is the cause. The acceptable limit for fuel dilution is 2% by volume. Re-generations plus potential injector failure will force fuel under high boost pressure into the crankcase. The ONLY way to monitor this is with regular oil analysis. Sniffing...

I’ve had exactly the same issue with my T6.1, had the software update which fixed it. There’s a few threads on here that explain the issue better than I can, something about the way euro 6 diesel engines work and fuel dilution.

You don’t, if you do oil analysis It’s on the report as a % £45 is about 20min’s labour in a garage as far as I’m aware.

I think this explains what might be going on here.... https://www.google.co.uk/url?sa=t&source=web&rct=j&opi=89978449&url=https://m.youtube.com/watch%3Fv%3DQcJ2z8e8cFM&ved=2ahUKEwjKsIiu2JKFAxX5X0EAHa3SBPAQwqsBegQIDRAE&usg=AOvVaw2ezd9e-RHTzQ-qDUL1bnRu

If VW fill the oil to the top of the dip stick during a service on a long run as the oil heats up and its volume expands I believe it triggers the warning. When my new T6.1 was delivered I noticed the oil level was 1/2 on the dip stick, the result I've not been affected by this issue. My oil...

Hi @DXX , thank you for your reply. Ok not a burn, I am a 60 MPH cruise control man myself. I plan to reduce the Oil level to half on the hatched area on the dipstick then take it out. I will take b4 and after photos and report back to you. My question is, without spending 45£ a time, how...

5000 miles for me. With dpf, diesel dilution in the sump no way I’ll leave the oil in any longer.

The oil level issue is well known and likely unrelated. If you filled beyond the middle of the dipstick then yes you likely overfilled otherwise it's more likely failed regens are diluting the oil. After you had a jump start did you do some significant engine hours to ensure the battery was...

A hot oil sample is alway better but having spent £50 and getting a bad result you really should act on it otherwise it’s not worth doing the test in the first place. Soot will be deposited in the oil control rings and once they are gummed up it’s game over. The lowered viscosity can really only...

...optimum engine lubricant) is that rapidly moving engine parts (crank) could dip into the oil if the level is too high, causing the oil to froth as it becomes aerated. frothy oil doesn't lubricate the engine effectively. Further oil dilution on the journey home is only going to increase that...

...turbo as well as EGR blanking and adblue SCR delete. With any luck new turbo will last beyond 5 years. I suspect, as @DXX says, fuel-oil dilution is the cause and I will try to arrange oil analysis as apparently VW didn't drop the oil to do the original diagnostics. I knew modern engines...

@totitxu, This is what I was told by my dealership when the overfill warning appeared after a service oil and filter change that did not recalibrate the dash overfill warning. In order to recalibrate the Overfill Sensor my VW service team were instructed by VW Technical Support to drain the...

Does anyone know if a T6 has a 'too much oil' warning light? Assuming the regens are done in the same way is there a possibility that T6's are getting diluted oil but without a warning light it wouldn't flag it up to the driver? Off to check my oil level now :oops:

you have to make sure the dpf is functioning correctly before you worry about the oil consumption. Known issue (and my van was doing this) is dpf is blocked and the unspent fuel was topping up the oil = no oil consumption on the dip-stick, reality is the oil is being diluted by fuel and causing...

Very true, over 100 deg C Oil temp’, takes considerably longer to reach that 90 deg C coolant temp’. If the engine is consuming oil it’s going to cause more re-generations than would be regarded as normal, more fuel dilution and carbon contamination of the oil. Carbon contamination causing oil...

...I can just go the long way somewhere. No issues yet but only 7k on the clock. We never got any warning lights on the JLR, just constant oil dilution from failed regeneration. I feel like all manufacturers should provide some standard driver feedback to help with this. Just a % in one of the...

I can only go on the experience we have had, although we moved each car on at less than 40K miles so I can't know what problems awaited the new owners.