Thread: Oil Question Again

I'm using 15w40 cat DEO ULS engine oil, I should start tracking it. Been using it for about 40k now, better detergents then hpr5 which I was using.

Another oil worth its weight is fuschs, they do a c1 C3 etc.

Cat oil is e9 from memory.. Commercial grade.

Havnt seen the video.. But I'm on 40 due to age.. 30 will be fine.. Mine was on 30 for a long time..
My next job is a neat and simple and easy to see oil pressure gauge

Hi Josh,
I’d be grateful to learn more of your oil pressure gauge for the D4 when you do it.
a good idea.
thanks, Jeff

Originally Posted by Jeffoir

Hi Josh,
I’d be grateful to learn more of your oil pressure gauge for the D4 when you do it.
a good idea.
thanks, Jeff

I've seen one online, looks professional.. But it might be custom, I'm currently investigating wireless options as well as a glove box installation

Originally Posted by Jeffoir

Hi Josh,
I’d be grateful to learn more of your oil pressure gauge for the D4 when you do it.
a good idea.
thanks, Jeff

x2

Originally Posted by shanegtr

I had a little bit more of an indepth look at oil wear rates from my sample history.

Hi Shane, who do you use for your oil samples? I’m coming up to an oil change soon, for the last 60-70,000Km I’ve been using Castrol 5W30 A5 (Land Rover spec), be interesting to see what results that gives. No idea what was being used before I bought the D4, it was being serviced by Jordan Rovertech.

Originally Posted by kelvo

Hi Shane, who do you use for your oil samples? I’m coming up to an oil change soon, for the last 60-70,000Km I’ve been using Castrol 5W30 A5 (Land Rover spec), be interesting to see what results that gives. No idea what was being used before I bought the D4, it was being serviced by Jordan Rovertech.

ALS

Originally Posted by DiscoDB

….steady on - I like Shane’s YouTube videos…….🤣


Oh my god - you are referring to the funny dumbass one…..

Yes I wasnt referring to any members on AULRO, the ones that have a youtube channel.

yes was in reference to lr time.

Originally Posted by DiscoDB

Nice one Shane. Great to bring some data to the dumbass debate…..heh heh.

Edit: you also have one outlier result (the first data point) which is also skewing the averages. Take that one out and you would be hard pressed to pick any statistically valid difference.

Yes, the first reading for the 5W30 is a bit of an outlier and does skew the average for the 5W30 compared to the 5W40,

BUT,

it is possible that the 5W30 might break down with increased distance travelled? That first reading was for a distance travelled of about 15,500km, which is the greatest distance for any of the 5W30 results. By comparison, there are 2 x 5W40 readings (that for the copper indicating bearings???), that are over 20,000km and have lower Cu readings similar to most other low mileage 5W30 and 5W40 readings.

You can only say that that first reading is an "Outlier", if you have other distances travelled that are greater than 15,500km that are low Cu readings for the 5W30. Yes there could be other factors at play to get that reading, but the fact that the longest mileage (kilometerage does doesn't sound right), of the 5W30 has the worst Cu reading by far and much greater distance 5W40 Cu readings are lower might indicate that longer distances travelled between oil changes for 5W30 might be an issue?