Think that would work better in my climate?soundguy said:15w40 is a far superior oil to 10w30 and 10w40. that's what I run in almost all my machines..
There is no longer zinc in any oil anymore. The diesel oil was the last to get it taken out. It is recommend to add a zinc additive to protect the cam's and litters especially after a rebuild/first start up. A lot of cam shafts that you get for car engines even come with a warning label telling you to use a zinc additivesoundguy said:it has better viscosity specs than a 10 40, and is better for an 8n than a 10wt base oil. not to mention a C rated diesel oil has more zddp than a gasser S only, rated oil, and that is good for flat tappets.. like your N has.. less wear... etc..
Ive called a couple of oil company's hotlines and they said that the "high mileage" oils have the maximum level of zinc that the EPA will allow Wich isn't much only because the high mileage vehicles probably don't have the high tech pollution control equipment. That is the reason for them taking zinc out. It will cause major problems with the newer cars. Plus zinc is actually highly toxic when burned so if there are oil burners out there the pollution is higher. I see this topic a good bit on antique and classic forums but never the tractor forums.soundguy said:plety of oil manufacturer web sites disagree with you.
I just did a google search of zddp ( zinc phosphorus) levels in oil, and got many hits with data. i read 2 hits on mobile 1 and delo. 1 was for a syn, and the other a 15w40.
I know S only, rated oils dropped zddp levels.. but C rated oils are still showing it. at least from the research I can find.
Jason1Pa said:Ive called a couple of oil company's hotlines and they said that the "high mileage" oils have the maximum level of zinc that the EPA will allow Wich isn't much only because the high mileage vehicles probably don't have the high tech pollution control equipment. That is the reason for them taking zinc out. It will cause major problems with the newer cars. Plus zinc is actually highly toxic when burned so if there are oil burners out there the pollution is higher. I see this topic a good bit on antique and classic car forums but never the tractor forums.soundguy said:plety of oil manufacturer web sites disagree with you.
I just did a google search of zddp ( zinc phosphorus) levels in oil, and got many hits with data. i read 2 hits on mobile 1 and delo. 1 was for a syn, and the other a 15w40.
I know S only, rated oils dropped zddp levels.. but C rated oils are still showing it. at least from the research I can find.
The guy I have do all my machine work does race engines and he has seen more premature wear in the last five years then ever before. He stresses that everyone should add an additive to the oil. He even goes the extra mile and mixes the oil and zinc additive in a clean container before putting the oil in a brand new engine. He had a friend build a engine and had it on the test stand. With in 3 minutes of running the cam and litters were distroyed. Like I said before if you go buy a cam shaft they come with a warning label now.
Look up on YouTube and there are videos on the dangers of old engines and no zinc
What is the parts per million levels on the zinc? It may still have some in there,but it isn't like it used to be. The EPA will not let them make it with the levels they had even 3 years ago... I wouldn't take any chances. It's not that much to put a additive in to be safe..soundguy said:that's why i run s/c rated oils in all my tractors.... flat tappets..
same reason I run valvoline ultra premium blue full syn 5w40 in my trucks
