It's really not to pricey if you buy the gallon bottle, I just got tired of dosing out a few oz. at a time.
For awhile I had one of those plastic lab type bottle you squeeze to dispense a bit at a time, but I left it on a pump somewhere.
So lately I've been buying a similar but cheaper version from Big Lot's because it comes in a 16 oz. easy to handle bottle (plus it's $2) which I just slurp a little in each tank before fill-up.
Cool. I have been using diesel. What is the Lucas stuff made of. Sounds British.