+1 to MDs post. I use jackstands to prevent flatspotting if the vehicle is not being used for more then 2 months (hide your floorjack too, this is an anti-theft measure because car thieves don't carry them).

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'03 X5 4.4 Sport, last of the M62s (8-03 build date)
I believe in deadication to craftmanship in a world of mediocrity!