I'll shortly be collecting a new to me L494 5.0 Supercharged. Going to be servicing it my self so I'm looking at buying a kit from the internet.

The oil being supplied is 5w20 by Rock Oil. Is this any good? Have others used it?

Thanks in advance.

Never heard of Rock Oil, but 5w20 has been superceded by 0w20.

Any good brand that conforms to the spec (STJLR.51.5122) will do - Ravenol, Fuchs, LiquiMoly, Mobil, Motul, etc.: https://www.opieoils.co.uk/c-3571-jaguar-s...e-oil.aspx --
2010 Defender Puma 90 + BAS remap + Alive IC + Slickshift + Ashcroft ATB rear
2015 Range Rover Sport Supercharged V8 HSE Dynamic



Defender Puma Workshop Manual: https://bit.ly/2zZ1en9
Discovery 4 Workshop Manual: https://bit.ly/2zXrtKO
Range Rover/Sport L320/L322/L494 Workshop Manual: https://bit.ly/2zc58JQ

On my l494 supercharged I went to my local independent Land Rover dealer and they gave me Morris multivis FB 5W-20 oil.
Hope this helps
Chris

L320 and L494 5.0L up to 2014 5w20, L494 from 2015 viscosity changed to 0w20 however can use 0w20 in earlier cars.

Cheers
Col