Definitely an odd one that.
I've been using GREEN or GREY off-road OKO for close to 20 years in all sorts of vehicles, but whats more of interest is I've used it in cars, vans and 4x4's all that time too.
Cars and vans - Balanced wheels - 500ml - Drive 20 miles.
The only noticeable effect was on my wife's car with 205/45/16 tyres, it occasionally blocked valves and it had a minor steering wheel wobble in the mornings between 10mph and 30mph until it got out of our estate and upto speed and a wobble for 10 seconds after hitting certain unhealthy bumps / potholes, no problems apart from that even at up to 130mph (on private land)
When she had an Escort on 195/50/15 we didn't even have that.
Vans, can't say I ever noticed....
4x4's - Balanced wheels - 750ml - drive 20 miles
Only thing I've ever noticed is a minor wheel wobble in the mornings getting out of the estate.
But this is on GREEN or GREY off-road OKO (I got it cheap)
I've never tried any of the other types.
Once tried SLIME in my nieces mountain bike, crap. (IMHO)