Its been discussed hundreds of time
but for the newcomer
I changed My RFT for regular
and I first bought aspare kit from BM
and first time I tried to use it in he country the cheap jack failed
the parts guy told me its the same from car
so too flimsy for the big X5, so he took it back
although it was damaged
and lukily I had a compressor with some plugs, and after over 1 year
it still run fine, I did not use the liquid in the can

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j-p - montréal
2007 X5 4,8, saphire black, saddle brown, sport package SOLD
2011 X5 Diesel