[munter]

Thanks Mr NonFractal lots of good stuff there.

I am a bit stuck on this line...

lighter cars can run longer mm/rev gears and still accelerate like a kicked cat.

 What is a longer mm/rev gears?

Also toothpaste stopped being abrasive some years back so would suggest a mildly abrasive kitchen cleaner.

Also also did you mention the cigarette lighter trick?

Regards
John