Mr N.B.: East Sussex, used ZX1 in his 10 year old BMW 525E
01 October 2002 04:03
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"I purchased a 250ml bottle of Extralube ZX1... administered the liquid to my 10 year old BMW 525E with 80,000 miles on the clock. The results were immediate and permanent thus far. It appears to do everything you claim, including and especially during the recent very cold weather, give excellent cold start protection. The fact that prior to using ZX1 my fuel consumption had fallen to around 27 mpg and has now returned to 30 + mpg speaks volumes. All this I might add before the cars been tuned !."