The handbook says Shell 1375.4 which is Lifeguard 6 !!!

The handbook is wrong. As previously mentioned.
Lifeguard 6 will be 'OK', Lifeguard 8 will be the oil the transmission manufacturers intend to be used.

kevinp wrote:

The handbook says Shell 1375.4 which is Lifeguard 6 !!!

Lifeguard 8 has an extra additives package than the 6 so it is not 'OK'!

It's 'OK' in that it's transmission oil designed for ZF transmissions, clearly it's not the right one (and I don't understand why you're arguing with yourself over this) but 'will do' in the absence of the correct ZF specified one. In the same way that 'some' engine oil is better than none at all.

If it's clearly not the right one why do you think it's ok to use. Foolhardy advice.

Does the Owners Handbook for your 2012 L322 cover the 5.0 V8 as well as the 4.4 TDV8? The petrol model uses the ZF 6HP28X transmission (which uses ZF Lifeguard Fluid 6, formerly Shell ATF M-1375.4) and the diesel model uses the ZF 8HP70X transmission (which uses ZF Lifeguard Fluid 8, formerly Shell ATF L12108). Could this be where the confusion has arisen, or is your Handbook specific to the 4.4 TDV8?

Phil

garyRR wrote:

I'm not sure where the confusion is. 'Lifeguard 8' is what is needed.

Chaps
Wasn’t expecting this to be polarising… I thought it’d simply be 8-speed box so LG8, no questions. Until Smith & Allan informed me differently, and then on checking with LR they advise the same. I’m only a sh*t driveway enthusiast and have no authority to say anything but its very difficult to go against Dealer and oil specialists…
The attached pic is their last feedback to me…

Click image to enlarge

LG8 is a higher grade of oil than LG6.

I certainly wouldn't be using non LG8 approved oil in an 8 speed box. Spend a little extra, and get the right oil

Hoping to!
I’ve contacted ZF Services UK Ltd, hope to get some finality with them.  Cheers, Steven.

2012 Vogue 4.4 TDV8.

I really don't understand why an ugly mountain is being made out of this.

The ZF 8HP70 uses Lifeguard 8 ATF. Either buy genuine ZF Lifeguard 8 ATF if you're that concerned or an ATF which conforms to the Lifeguard 8 standard S671 090 312 (for example Mannol AG60 which even has the standard printed on the front of the bottle and the actual Land Rover part number stamped on the back [LR023288]).

It's that simple and seems overkill to be contacting ZF to ask, when all of this information is freely available. 2015 Range Rover Autobiography 4.4 SDV8

I'd be taking it to Mikey (first reply to your post on page 1) at MMP in Dundee for a Megaflush and let him sort it. He's a guru  Gone to a good home: 2011 4.4 TDV8 Vogue SE Buckingham Blue with Ivory and clear glass = "Rory"
2025MY Defender D350 90 in Silicon Silver on coils
1974 Series 3 Lightweight = "Millie"
Many, many other Landies over the years
My preferred specialist: www.glenrands.co.uk
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I had my reply back from ZF UK this morning.
After confirming vehicle reg and VIN they have recommended Lifeguard 8 ATF (or equivalent). I had explained the mixed message from LandRover and handbook etc.

Click image to enlarge

8 speed has a thermostatic valve in line with the oil cooler I believe so different flush protocol to the 6speed.
Hence I had Bodsy do it on my drive with his mobile Megaflush as part of my preventative maintenance program  Gone to a good home: 2011 4.4 TDV8 Vogue SE Buckingham Blue with Ivory and clear glass = "Rory"
2025MY Defender D350 90 in Silicon Silver on coils
1974 Series 3 Lightweight = "Millie"
Many, many other Landies over the years
My preferred specialist: www.glenrands.co.uk
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