I live in florida, I've switched all my units to 15w40 C rated oil, except 1.
Since I've got so many tractors.. i don't get tons of hours on each one.. so i do yearly oil changes.
as for dino vs synthetic.. I run dino oil in all my diesel and gas tractors except 1, and in my trucks, i run valvoline 5w40 synthetic ultra blue C rated oil.
the 1 exception I keep mentioning is a 1963 ford 4000 gasser.. I just recently had to go thru the head and top end as I had stuck valves and bent pushrods.
I cleaned it up real good and got her back going.. but found tons of deposits on the intakes....
I went to a 10w30 S rated synthetic oil in that tractor to see what the detergent package does for her. the S rated syn oil was quite a bit cheaper thant he C rated syn oil... and for a gasser.. the S rated syn oil is more than fine.. way better than what was available in 63..
as for adds? I put a lil atf in my gas and oil, plus now use seafoam and stable in all my gassers after that weired fouling on the intakes in that tractor. think i may have had a bad batch of gas that turned and gummed her up perhaps..
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Today's Featured Article - What Oil Should I Use? - by Francis Robinson. I keep seein this question pop up over and over again in discussion groups all over the web. As with many things there are often several right answers and a few wrong ones. Some purist I'm sure will disagree to no end with what I will tell you but most of us out here in the real world don't really care do we ? Some of them only bring their noses down out of the air long enough to look down them anyway. If you are like me you are only doing this old tractor stuff because you enjoy it. You
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