synthetic 15w40

[mguitas]

I ask the same question on the massey forum, TSO said running 5w-40 amsoil would be fine. An the tractor is running good. Because my manual also said to run 10-w30

 

[WilliamBos]

x2...don't really see the cost benefit of a 15/40 syn blend over say T6 with superior cold flow properties (& occasional sale promotions). with our wide swings in temps now, i'd be more comfortable in single digit weather using syn 5/40 even where the OP resides. imho

That's exactly why T6 was put in our MF on the first service, and have been running it since day one.

 

[Copperhead]

Agreed. Depends on the application as to how the benefits are. For smaller applications that really don't get oil changes that often, I would have no problem using 5w40 year round, in fact, I would prefer to do so. But for my larger applications, the cost benefit isn't there. That is why I use a 5w40 only in the colder months and then 15w40 in the warmer months. 10 gallons for each oil change and it gets done every 20,000 miles / 400 hrs (equates to about every 1.5 months). Every little dollar saved counts. Used oil analysis shows no appreciable benefit to using a full syn year round in that situation.

 

[pmsmechanic]

How much are you guys paying for your oils if your worried about saving a few dollars between oil changes by switching to blends for the summer? I won't say it's the best oil because I don't know but I use John Deere's synthetic 0W-40 year round in everything. It saves me having to keep several different oils in stock and I don't have to worry about the seasons.

John Deere says that if you use their synthetic oil and their filter you can safely extend your oil change intervals by 50%. There's enough savings right there to pay for the synthetic oil. With oil analysis you can go further than that. Their price on oil is also very reasonable and you can get it at any John Deere dealer.

 

[clemsonfor]

How much are you guys paying for your oils if your worried about saving a few dollars between oil changes by switching to blends for the summer? I won't say it's the best oil because I don't know but I use John Deere's synthetic 0W-40 year round in everything. It saves me having to keep several different oils in stock and I don't have to worry about the seasons.

John Deere says that if you use their synthetic oil and their filter you can safely extend your oil change intervals by 50%. There's enough savings right there to pay for the synthetic oil. With oil analysis you can go further than that. Their price on oil is also very reasonable and you can get it at any John Deere dealer.

That sounds convenient!! I don't know where my closest Deere dealer is? It must be at least 60 miles, I don't think I ever recall seeing one in town when I have been there. I might have to google it to see. But I do have 2 walmarts and an orileys and 2 autozones and 2 advances and several carquest and nappa there, and then even more of those in surrounding smaller towns. Deere oil would be a hassle to come by for me.

 

[pmsmechanic]

That sounds convenient!! I don't know where my closest Deere dealer is? It must be at least 60 miles, I don't think I ever recall seeing one in town when I have been there. I might have to google it to see. But I do have 2 walmarts and an orileys and 2 autozones and 2 advances and several carquest and nappa there, and then even more of those in surrounding smaller towns. Deere oil would be a hassle to come by for me.

I usually buy oil on sale. John Deere has 10% off twice a year. Right now the sale is on till the end of October. You can sign up for email notices. Since I live 30 miles from the closest dealer I usually buy 5 gallons at a time. I buy it when it's on sale not just before I need it. I use a little more than two pails a year.

 

[Copperhead]

How much are you guys paying for your oils if your worried about saving a few dollars between oil changes by switching to blends for the summer? I won't say it's the best oil because I don't know but I use John Deere's synthetic 0W-40 year round in everything. It saves me having to keep several different oils in stock and I don't have to worry about the seasons.

John Deere says that if you use their synthetic oil and their filter you can safely extend your oil change intervals by 50%. There's enough savings right there to pay for the synthetic oil. With oil analysis you can go further than that. Their price on oil is also very reasonable and you can get it at any John Deere dealer.

What Deere says has a caveat with it... you never extend drains without solid oil sample testing results the confirm it is good. I get my Schaeffer in bulk, delivered free to me, that is a far better value than buying stuff off the shelf. But then, I go thru about 100 gallons of oil a year in my various stuff. Going thru that much oil, it does make a difference on what I use for winter and summer months. For the average user, probably not so much, only a few bucks. Whereas my oil use, it can mean a difference of hundreds of dollars. Deere has some good oil, but so do all the other major brands. Remember, Deere doesn't make their oil, it is a contract deal with a 3rd party blender.

 

[Gary Fowler]

Rpm should be a function of yor load, throttle setting, and governor, not oil.

You are right, less load on the engine when running the full synthetic. Maybe it produces less friction on the moving parts thus more RPM and more power.

 

[Soundguy]

You are right, less load on the engine when running the full synthetic. Maybe it produces less friction on the moving parts thus more RPM and more power.

That still isn't correct.

Bottom line.

max throttle, your engine governor rpm. it shouldn't change with an oil change.

 

[pmsmechanic]

That still isn't correct.

Bottom line.

max throttle, your engine governor rpm. it shouldn't change with an oil change.

Well here is something that does change. I have two Dodge cummins engines. With dino oil the belt squeals from the inertia of the alternator when the engine is shut off. With fresh synthetic they don't squeal. I'm just guessing but I'm thinking that less friction lets the engine coast to a stop a little slower and the belt doesn't squeal.