I was also advised By Land Rover specialist to change the oil every 3k or 3 months in order to hopefully prevent the timing chain issue on my 2012 LR4 with 75k miles but he also recommended to run 10w40 high milage fully
synthetic oil all year round (I live upstate NY where temps go down to 0 degrees) vs 0w20 winter or 5w20 summer that the dealership use.
All this was by phone call as I wanted him to check my LR4 for the possible timing chain issue as the engine has a ticking noise but he said to run the thicker oil and see if it quiets down first. He didn’t seem to run to take my money so I believed what he suggested.
I’ve been running the 10w40 for 1.5k miles so far and the engine seems a little less noisy, but might be also psychological...I plan on changing it at 3k miles and send an oil example to get tested.
I added a video of the engine running before changing to 10w40 if anyone has an opinion about the timing chain noise?
It’s interesting to see that so many Land Rover specialist have so many different opinion on this matter...