Found 2 of these in my gas tank while swapping out the fuel filter. Any idea what they are?

 

They remind me of magic devices, introduced when leaded gas was becoming rare, that were supposed to enable an old engine to run OK on unleaded! Difficult to imagine anyone today would fall for that. Looks like you have a couple of souvenirs you can use at parties, for a guessing game to pass time!

Interesting to see if anyone comes up with the real answer!

 

Cant seem to find it now, but some company selling a dubious device that claims to be a permanent stabilizer - claims better mileage, more power, etc.

 

Yep, looks like the lead or octane add-on
http://cars.donedeal.ie/vintagecars-...ditive/4920348

 

One of them is a penny... HA

 

Well done! They are Fitch Fuel Catalyst pellets and cost 60 bucks. "NOTE: You must use both units in one vehicle to attain full results!!"

That didn't take us long! Next?

 

That's what the other 2 things are worth.

 

Thank you guys!

 

Actually those do keep the fuel fresh. As far as hp gains I've never seen that. I dropped one into a 5 gallon can of real old gas (2+ yrs) and it brought the gas back to normal. I had about 35 gal of gas that was purchased for my generator during hurricane Charlie cleanup. In the mess I forgot about the cans gas stored in one of my out buildings. Anyway it will preserve gas or bring back fuel that has aged poorly.

 

I think the penny was for your thoughts.