I’ve used Lucas stuff for years and I really like it. I have stabilizer in the engine, tranny, transfer case and both differentials. In the front hubs is Lucas “hub oil”.

I just got back from a 3700 mile trip in my 616 powered Rover and used less than a quart of oil, and that was with a filter change half-way thru. (It has a remote filter set-up) Taking the filter into consideration the truck used maybe 8 oz.

I’ve never noticed any frothing, and yes, I had to check the tranny multiple times when it was hot as it developed a leak shortly after the trip started. Nice, clean, stable oil, just as you’d expect.

Jim