Speedo Lube ?

[chuck ciaffone <chuckc@ibm.net>]

Oliver Sudden,

my speedometer is reading way too high. It doesn't
seem to bounce erratically, but it does read as
much as 20 mph high (80 when I'm doing more like 
55-60). I took it out last night, opened it up,
and sprayed some canned-lube onto the gears.

What should I be using? I tried some silicone
spray, but I can also do WD-40, light oil, bicycle
grease, lithium grease. What is best on these small
gears?

chuck