Welcome to the forums, Joggernot!
My advice would be to skip the slippery skin, it's the "magic bullet" kind of B.S. that the Mythbusters love. Spend that money on something useful, like an Scangauge or Ultragauge!
~Matt
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Nissan Leaf driver? Join me in Team Leaf and feel smugly superior about our MPGe
Current Car: White Lightning
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Retired Car: Betty White
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