Well looks like LR are twitching ,it's 6 months to my next service ,but up came service due on incontrol ,so phoned dealer and they said it's got to have an oil change due to dilution of oil .any one else had this

They just changed the oil on mine after 8 months and 6,000 miles (they've had it for a month or so during that time, hence the low miles). It was counting down (50 miles a day for 40 days) to an annual service because it was PDI'd 3 months before I took delivery of it (cancelled sale to someone else, I got a big discount and am still the first registered keeper), and I was going to ignore it, but I had to take it in to the dealer for another issue. They said it needed an oil change anyway in 19 days because of oil dilution (bit of a bloody coincidence I thought). Fortunately, they said the 5 year service plan I have apparently has up to 4 interim oil changes included AS WELL, so they did the oil change for free and I'll be taking it for it's first service in 4 months time, when the oil will be changed again. RRS MY17 SDV6 AB
Evoque MY17 TD4 AB

This issue is the main reason why I got out of my car before the OE warranty expired.

Oh - and being outright lied to by the Dealer about it didn't help. In fact it made me decide to turn my back on JLR products for ever. MY2016 HSE D SDV6 - gone due to fuel dilution problems.

By the age of 50 you have the face you deserve - George Orwell.

I bought my car at the end of march this year MY16. After 3500 miles I had the service message come up, phone dealer and they said bring it in and we will reset it. After waiting an hour the receptionist said that the oil had been diluted and would need to be changed, thankfully Land Rover covered the cost. Seriously considering a petrol one now too many stories with the diesel.

The software seems to be be over pessimistic, an owner on the Disco5 had his oil analyzed and it was at 0.5%.

The car's software said 6.1% 2023 P440e SE Dynamic on order -cancelled

2022 HSE Dynamic P400e

2017 Discovery 3.0 HSE Silicon Silver Nimbus interior and a few extra toys SOLD

2013 HSE Black, Orkney Grey, Ebony Seats and Ivory Interior SOLD

2006 HSE

Plus a few other cars inbetween!

Dave Harries wrote:

I bought my car at the end of march this year MY16. After 3500 miles I had the service message come up, phone dealer and they said bring it in and we will reset it. After waiting an hour the receptionist said that the oil had been diluted and would need to be changed, thankfully Land Rover covered the cost. Seriously considering a petrol one now too many stories with the diesel.

The car's computer calculates a dilution figure based on the number of DPF regens.


So it is a synthetic, calculated figure, not an actual measured one. An algorithm.

Mine was supposedly "OK" according to the dealer, but according to the Millers oil analysis, it was 8% diluted. Dangerously high level, with engine wear already starting. MY2016 HSE D SDV6 - gone due to fuel dilution problems.

By the age of 50 you have the face you deserve - George Orwell.

Wilf still a mystery to me, are you saying regens are based on oil dilution, which still would require some sort of test ? I meanhow does the vehicle know the oil is diluted with out some sort of internal test ? M16 SVD8 ,4.4 HSE with a few extras, Sold R50 , Wife SQ5 , BMW R1200GSW.

wilf wrote:

The car's computer calculates a dilution figure based on the number of DPF regens.


So it is a synthetic, calculated figure, not an actual measured one. An algorithm.

Mine was supposedly "OK" according to the dealer, but according to the Millers oil analysis, it was 8% diluted. Dangerously high level, with engine wear already starting.

IRBails wrote:

Wilf still a mystery to me, are you saying regens are based on oil dilution, which still would require some sort of test ? I meanhow does the vehicle know the oil is diluted with out some sort of internal test ?

Red Arrow wrote:

wilf wrote:

The car's computer calculates a dilution figure based on the number of DPF regens.


So it is a synthetic, calculated figure, not an actual measured one. An algorithm.

Mine was supposedly "OK" according to the dealer, but according to the Millers oil analysis, it was 8% diluted. Dangerously high level, with engine wear already starting.

How many miles had the oil done (and the car in total ) when Millers tested the sample and what product was it ?
Thanks

Exactly the same issue that affects the 2.0d Discovery Sport and some Velar models, JLR document JLRP000100 refers to procedure dealers should adopt, although many try to ignore the guidelines and either blame it driving style & try to get you to pay or say it’s just a software glitch which requires resetting.

Seems that LR want to keep brushing this problem under the carpet since they are doing nothing about an issue which will eventually reduce engine life & will not be their problem once the car is out of warranty

Is the safeguard against this weakness intermediate oil changes then?
I would rather do my own intermediate oil change than trust the “algorithm”

Oldandconfused wrote:

IRBails wrote:

Wilf still a mystery to me, are you saying regens are based on oil dilution, which still would require some sort of test ? I meanhow does the vehicle know the oil is diluted with out some sort of internal test ?

Part of the re-gen process is to introduce excess fuel so that some unburnt fuel enters the filter to create heat in the filter to burn off the ash. It's the process of intoducing the excess unburnt fuel which allows it to enter the oil, thus diluting it. More short trips=more diesel particulate build up in the filter=more frequent re-gens=more diesel in the oil (=premature engine wear?).

Coedlan wrote:

Is the safeguard against this weakness intermediate oil changes then?
I would rather do my own intermediate oil change than trust the “algorithm”