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Originally Posted by Zulu95
Have not tried it and tend to stay away from anything claimed to fix all ills.
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I would agree. About every 7500 miles, I run my tank nearly empty, then put in a large bottle of techron. Run it for another 50 miles or so at super strength, then fill up.
I first did that when I was getting some pinging in my 4.8is, and haven't had the problem since. I've since been using only Shell V-Power 93 octane, per BMW's recommendation:
http://www.toptiergas.com
Otherwise, I'd say that treatment package has worked well for my rig.