A few assumptions,

16000 miles between oil changes (LR recommendation I believe)
Average 35 MPH (you will be surprised how low your average is)
That’s 457 hours driving (haven’t factored in anything for standing still!!)
That’s 27400 minutes
1600 RPM (assumed average)
Your engine has completed 43 million 840 thousand revolutions

Our 4.4 TDV8 has big timing chains crushing our oil on top of your typical engine components putting our oil under extreme duress.

It makes me question my 3k to 4k oil changes and I use top quality oil without fail….. 2012 4.4 TDV8 Vogue Santorini black ivory leather

oil is cheap, engines are not 2018 SE SDV8 4.4 Byron Blue

Love the colour of your car kot. 2012 4.4 TDV8 Vogue Santorini black ivory leather

Its looking very grey at the moment needs some tlc  2018 SE SDV8 4.4 Byron Blue

The oil is not under extreme duress in these low revving engines. JLR oil change intervals are too long but 3-4k is overkill as is premium oil IMO. Soot load and fuel contamination are the reasons to change the oil. 2012 TDV8 Vogue (L322)

JayGee, to say you’re more knowledgeable with these cars than me would likely be the understatement of the year so I know you are right.

3k to 4k miles for me is 2 oil changes a year and at £100 for premium oil and filter it’s only costing me an extra £100 per year. Don’t get me wrong, on my salary now having left a lucrative career behind me £100 is not chump change but it gives me peace of mind. 2012 4.4 TDV8 Vogue Santorini black ivory leather

Eastsoutheast wrote:

<SNIP> Our 4.4 TDV8 has big timing chains crushing our oil on top of your typical engine components putting our oil under extreme duress <SNIP>.

Interesting - do you have any links discussing timing chains and their detriment to oil?

I always thought (perhaps wrongly ) that the big-ends were the oil crushing dept. of an engine?

Jon 1992 RR Classic 3.9 efi Vogue
2014 Disco 4 HSE
===================
Both my fatties now gone...
Previous: 2011 L322 4.4 TDV8 Vogue SE /// 2002 L322 4.4 V8 HSE /// 2009 Discovery 3 2.7 TDV6 XS /// 2004 Defender 90 TD5 /// 1993 110 V8 Snatch Landrover /// 2005 Discovery 3 2.7 TDV6 SE (Aus) /// 1990 110 Isuzu 3.9 County (Aus) /// 1976 Series III Trayback (Aus)

I spend far too long watching you tube videos especially vehicle related but trying to locate would be quite the mission (I will try). The motor oil geek does cover this subject and his content is very informative and avoids the typical anecdotal bull. 2012 4.4 TDV8 Vogue Santorini black ivory leather

D3Jon wrote:

Eastsoutheast wrote:

<SNIP> Our 4.4 TDV8 has big timing chains crushing our oil on top of your typical engine components putting our oil under extreme duress <SNIP>.

Interesting - do you have any links discussing timing chains and their detriment to oil?

I always thought (perhaps wrongly ) that the big-ends were the oil crushing dept. of an engine?

Jon

Thanks JayGee & Eastsoutheast.  1992 RR Classic 3.9 efi Vogue
2014 Disco 4 HSE
===================
Both my fatties now gone...
Previous: 2011 L322 4.4 TDV8 Vogue SE /// 2002 L322 4.4 V8 HSE /// 2009 Discovery 3 2.7 TDV6 XS /// 2004 Defender 90 TD5 /// 1993 110 V8 Snatch Landrover /// 2005 Discovery 3 2.7 TDV6 SE (Aus) /// 1990 110 Isuzu 3.9 County (Aus) /// 1976 Series III Trayback (Aus)