- HDFB110
- Member Since: 22 Nov 2017
- Location: Glos
- Posts: 38
New found thirst !!
15,000 miles = 4 DPF 'oil dilution' oil changes.
To & from work drive 12 miles each way mainly A road - 40 to 60 mph.
On average once a month 100 mile trip each way to airport - all motorway - 70 mph.
Vehicle stated MPG 37 - own calculated fill up to fill up 35 MPG.
Was told by the dealer & LR that with that MPG I am not driving the car hard enough.
That's what causes my oil dilution issues.
Have been told I need to run at about 2000 rpm to get & maintain a good DPF temperature.
So 2 fill ups in to my new driving style -
Keeping to the speed limits (obviously) I have kept (as best possible) to the 2000 RPM advice.
This means running in 'sport' mode to allow the car to be held in at best 6th gear.
I am now at 24 MPG !!!
Will have wait & see if I get oil dilution issues still - normally for me about 2500/3000 mile intervals.
In summary it seems get near to the combine MPG quoted & get oil dilution issues.
or
Drive it hard (hopefully) avoiding oil dilution but have far lower MPG - somewhere down at the quoted town driving figure.
Another question - why have we got an 8 speed gear box????
At 70 MPH in drive (8th) I am at about 1400/1500 revs?
7th puts me just below 2000 RPM at 70 MPH
6th puts me just over 2000 RPM at 70 MPH
If 2000 RPM is the 'optimal' RPM - we don't need 8th, might not even need 7th?
So completes another rant !!!!
- Chopsy
- Member Since: 05 Jul 2018
- Location: Warwickshire
- Posts: 179
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Interesting observations and I can understand where you are coming from.
Just another thought. Apart from the inconvenience, how much does an oil change cost. Is it cheaper to drive normally and get 38mpg and pay the oil service, or save on the oil service but pay the extra fuel cost of driving everywhere in sport at 2000rpm?
Pencil and paper (and calculator) at the ready......
- DSL
- Member Since: 23 Jun 2016
- Location: No longer in the D4 :-(
- Posts: 134
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Out of interest, what speed is the car doing at 2,000rpm in 8th?
- HDFB110
- Member Since: 22 Nov 2017
- Location: Glos
- Posts: 38
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2000 RPM in 8th equals 85 MPH + (where allowed !!)
- Bogblaster
- Member Since: 12 Dec 2017
- Location: Gloucestershire
- Posts: 32
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Hi.
What engine and how old is the car? Did you buy it from new?
I've just bought the new 3.0 litre and they were really pushing me for the service pack, which includes 2 oil changes between services.
- HDFB110
- Member Since: 22 Nov 2017
- Location: Glos
- Posts: 38
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3.0 TD6
About 18 months old.
I bought it as an ex-manager/demo car.
I too have the service pack (5 year)
- Sw1gs
- Member Since: 28 Aug 2017
- Location: Argyll
- Posts: 41
I thought I’d originally avoided the oil dilution issues on my 14 month old TD6, had service indicator reset at 8,000 miles and then service at 10,500 miles, where I had full software update and N222 patch applied. Since then, it’s got way worse- on a trip from Scotland to Holland and back in Oct, averaged 32.3mpg, drove 1257 miles at an average speed of 47mph, but lost nearly 5,000 miles of service range. Now completed just over 2,000 miles since service and only have 8,000 miles to next service left! So on a long run, it dropped roughly 4miles to every 1 mile actually travelled - apart from a blast along a German autobahn at 115mph where it dropped at a 1-1 ratio! It’s just flawed and the sooner LR accept that and stop blaming it on driving style, the better as many owners are likely to walk elsewhere at this rate! ,
- Labbix
- Member Since: 05 Mar 2018
- Location: Tanzania
- Posts: 955
As I still am without my D5, a month now at the dealer, I can’t compare yet, but first I was informed about the N222 update, and shortly after that they had done the N222v2 as well, meaning something was still not ok with the original ‘patch’. Maybe now they finally were able to write some decent software, as that’s what it is. Let’s hope for it!
