dknarnd
Gold Member
I suspect you are correct that the MMO is doing the trick and the lead probably isn't needed. The old timer that lives across the hill and works on my tractors for me started me on the MMO when the valves were sticking and I'm not sure how I got started on the lead. However since my brother gave me two bottles of substitue that each mixes 320 gallons it has been added for many years now and I have enough for another couple years.