I was originally using the Stanadyne additive but shifted to the Powerservice brand in the silver bottle. Lately I've been using some from a commercial vendor(can't remember the name of the maker) after being given a nearly full 55 gallon drum of it by the folks my Dad was working for. They said they had to get rid of it because they couldn't get an MSDS sheet for it. It took me about two minutes to call the place listed on the drum and find out everything I needed to know about the stuff. In this case it was a somewhat proprietary mix they had made up for a bulk distributor.
So far I haven't noticed any real difference in any of the brands, and have been maintaining within about 1/2 MPG with all of them. With the stuff I'm using now, out of the drum, they make claims of a slightly higher percentage of gain than I am seeing, but there always seem to be better results gained under controlled conditions than typically seen in the field so it doesn't bother me a bit. Not to mention it's nearly $1000 worth of free additive so who am I to complain...LOL
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Today's Featured Article - New Life for an Old Allis - by Tyler Woods. My friend Jon, has an old '39 Allis Chalmers B. He thought it a marginal tractor that had long since served its time. She smoked terribly and never had much power but he couldn't afford another so he was limping along with what he had. Jon's Allis has a small front loader and though it doesn't carry much, it serves his needs. It was the hard starting and low power that made him think it was time to replace the old girl. Jon called me to help him discover why his tractor wouldn't start
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