126K and someone's additive in EVERY tank since new. Hand calculate each fill up. I've tried Stanadyne, Howes, Redline, Power Service, and Amsoil. None of them gave me any better mileage, altho some of them did quiet down the engine. I stuck with additives for the theory of pump lubricity.
I've run five tanks since switching to Amalgamated and my average is up 1 mpg. No biggie for some of you who claim mileage increases from injectors, boxes, etc. Engine is noticeable quieter, especially at cold start.
I've held off purchasing because of the 5 gal. minimum and $40 shipping charge, but even then the cost per gallon is half of what I had been paying for Stanadyne ($18 vs. $35. 86)
I've run five tanks since switching to Amalgamated and my average is up 1 mpg. No biggie for some of you who claim mileage increases from injectors, boxes, etc. Engine is noticeable quieter, especially at cold start.
I've held off purchasing because of the 5 gal. minimum and $40 shipping charge, but even then the cost per gallon is half of what I had been paying for Stanadyne ($18 vs. $35. 86)