I have used XPCL in my recently rebuilt 1937 Riley Kestrel Sprite. The car performs as it should do, based on period road tests although I'm a bit careful about the 'over eighty' claim. I don't believe in miracles 'out of a bottle' but the fuel consumption is much better than I had expected and it runs so well, having little difficulty keeping up with modern traffic.

The Riley was an unknown quantity - it never ran without XPCL, but I doubt if it ran this well in 1937.

My modern bus is a 1993 Ford Maverick 2.7 TD. I've owned it since nearly new so I think I know it pretty well. Fuel consumption running around rural Angus has always been about 25 mpg. Since dosing with XPCL it has become noticeably smoother. Fuel consumption on the last check was 29 mpg. It feels more relaxed, pulls better without any fuss. It simply goes much better!!

Iain Drummond 6/1/05