Stanadyne?
 

Need a price, how big are the bottles, & how many gallons does each bottle size treat?

Thanks!

I've been using it for 6 months or so on the recommendation of the local injector shop after I lost #6 injector. They sold me case of 16 oz bottles, each bottle does 60 gallons. They got me @ 10.99 per bottle (Canadian $) At first I thought it was improving my mileage a bit, but shortly after I started to use it I put on the 35's tires. My MPG been dropping like a rock, however I still need to get the speedo recalibrated for the bigger rubber so I haven't even tried to figure it out. I hope this helps.