Thanks all for your thoughts and feedback.
In the meantime:
- "I have taken the plunge" by removing 300ml of oil (via the dipstick) and added a can of Ceratec (300ml) with the vehicle at 5400 miles
- This is slightly under dosing it for the 7.5 liter oil capacity (with filter) as Liqui Moly recommends 6% or 450ml
- Currently at 5900 miles
- I have noticed a reduction in noise from the engine at startup, a quicker settling to lower rpm and a general reduction of noise and improved smoothness as I drive and come to a stop at traffic lights. Also seems to be idling longer at 600rpm before cooling kicks in, even though temperatures are up in Houston.
- I accept this could also be a function of the run in process although the change witnessed coincided after driving it for the first 200 miles or so, whereas run in I would expect to already have taken place after the first 1000 to 2000 miles
- As a side note, during the initial maintenance at 4900 miles at Toyota I asked them to change the oil, so it was still pretty new when I added the can of Ceratec
- On an additional note, the other car we have is a BMW 535d which is at 50k miles. I added Ceratec to the BMW at about 45k miles and experienced a similar reduction in noise and general improved smoothness of the straight 6. Yes, even though it is a diesel.
- For clarity, I am not sponsored or related to Liqui Moly one way or the other and paid for this "snake oil" myself
All in all I am happy and like what I am experiencing in both vehicles. For now I think I will repeat every 20 or 30k miles.
So is it worth the $28 per can? Probably not for most of us
Does the Land Cruiser 3UR-FE need it? I would say definitely not as it is great as is
Will it be helpful to reduce wear and improve engine condition/performance at high mileage? Maybe it does and I like that as I plan to keep this vehicle for 20y +
Do I like what I hear and experience? Yes
Will I use it in the longer term? Yes, I probably will.
As such I remain curious as to other Land Cruiser owners who have used Ceratec for a while now. Especially any downsides experienced.
For those interested, I like the videos Todd makes of Project Farm. He witnesses a measurable improvement in his lawn mower... however minor.