Search results for query: oil dilution

From memory it takes 0.5L to raise from minimum to maximum oil level on the dipstick. Being 1.5L below minimum is very low. My 2016, CFCA 180ps oil level does not visibly reduce between annual oil changes (8-10K miles) and oil analysis does not show fuel dilution.

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...

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

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

2% dilution is a cautionary level, 4% is the potential lubrication failure level for Diesel engine lube oil analysis. While there have been significant improvements in synthetic oil properties I think the source of the ‘don’t worry‘ opinion is the motor manufacturers themselves. Let’s face it...

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...

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:

...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...

Reassuring as I just checked mine before we head off for summer hols and it’s the same level as yours. I too had a good look all round and squeezed the boots - all dry, no signs of a leak anywhere. I imagine it’s never been topped up. Will do this and keep an eye, feeding back if anything new...

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.

Check how much blow-by pressure is present at the oil filler cap with the engine ticking over. Compare with another 204ps if possible. I would get an oil analysis done, this will indicate the level of engine wear, oil viscosity (fuel dilution) and soot content (blow-by). I would put an oil...

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...

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...

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.

...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 used a flush at my last oil change as the van was on 113k and I thought I’d give it a good flush. I won’t flush it again though as I’d rather have old oil residue than diluted flush/oil left behind.

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...

@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...

If in doubt about fuel dilution get an oil and filter change done. It’s also worth doing an oil analysis for £45, obviously not with new oil. It might be the best £45 you’ve ever spent if it save you thousands...