Hissing, no leaking

[DieselPower]

Okay, time for the dumb question -- If the 5W/20 fluid works well in summer, why would CNH even bother with the 10W/20? It would seem they would do their reputation a better service if the tractors were shipped ready for whatever climatic conditions they might encounter within a given region.

Same reason you will find a specific car shipped from the assembly plant with 10W/30 in the engine crankcase. Depending where you live the owners manual might actually specify a 5W/30 or 5W/20 if your in cold climates.

Another reason may be that not all lubricant manufacturers make a winter UTF oil, most do but not all. So, depending on what lube manufacter the tractor manufacturer is using they may not even have a winter UTF available to them.

SAE numbers include, for example, 10W-30, 5W-40 and sometimes just a single number such as 5W, 10W, 20, 30, 40 or 50. The "W" next to a number means the oil thickness was measured at a very cold temperature, as low as -35 degrees F, when the oil is thickest. A number without a W suffix indicates the oil thickness was measured when the oil was hot (210 degrees F). Two numbers separated by a hyphen indicate a multiviscosity oil. Multiviscosity oils are tested at both hot and cold temperatures and are recommended for all-season use. Multiviscosity oils are able to lubricate moving parts over a wide range of temperatures. These oils contain a viscosity index improver or polymers to change the viscosity of the oil as temperature changes. A multiviscosity oil such as a 10W-30 will function like an SAE 10W oil at cold temperatures and like an SAE 30 oil when the temperatures are warm or hot.

The main difference between UTF and Winter UTF is it's cold operating characteristics. So, the regular UTF acts as a SAE 5 weight oil at cold temp's and the Winter UTF acts as a SAE 10 weight oil at cold temps.

And to add to your choices you can often get a hot weather UTF, usually a 10W/30 viscosity. It's main difference is it's hot operating characteristics. When at operating temp it acts as a SAE 30 weight oil instead of a SAE 20 weight oil.

As far as equipment break in goes. Highly doubtful. A 5W/XX oil will break in just as well as a 10W/XX oil will. It might be true if we were talking about petro based oil to synthetic based oil.

 

[SPYDERLK]

Okay, time for the dumb question -- If the 5W/20 fluid works well in summer, why would CNH even bother with the 10W/20? It would seem they would do their reputation a better service if the tractors were shipped ready for whatever climatic conditions they might encounter within a given region.

DieselPower. I think this is a very valid question. You addressed it, but I dont see that you really answered it. Assuming a good base stock I cant see any reason to use the 10W-20. The 5W-20 should work as good or better at all temperatures.
Larry

 

[DieselPower]

DieselPower. I think this is a very valid question. You addressed it, but I dont see that you really answered it. Assuming a good base stock I cant see any reason to use the 10W-20. The 5W-20 should work as good or better at all temperatures.
Larry

Ok, I'll try to explain it a little more.

In general with any multi-viscosity fluid you want to keep the low and high temp operating viscosity's as close as possible. Ideally you would use a straight weight oil and the equipment would operate at only one temp all of the time. But since vehicles and equipment are used in different temps and have to go from cold start up to full operating temp we use multi viscosity's.

Oil's with a closer low to high temp viscosity differential do not need as many viscosity improver additives and are often made with a lower VI base stock.

Now, why do tractors come factory filled (at least the majority do) with a UTF in the 10W/20 range? Probably because in the majority of circumstances that viscosity oil performs just fine in the "majority" of tractors. Some, depending on their systems design and tolerances may need a thiner fluid in cold weather while others still need the thicker one in hot temps.

Another thing to consider is leaks. Yes, those nasty little puddles your wife complains about that you leave all over the place. The oil with a 5W cold viscosity is and will more easily leak than the 10W would, it is after all thiner at ambient temp. Most peoples tractors will sit parked and unused more than they are used every day. So with the slightly thicker 10W the chance of minor oil dribbles all over your garage floor or parking lot are reduced when compared to a 5W.

 

[daTeacha]

And now the ringer, folks!

Case is extremely specific about using only their hydraulic oil. There is nothing I can find at the general tractor stores (TSC, RKO) that even claims to have the same specs as Hy Tran Ultra. Ditto NAPA and automotive supply places. They all have universal stuff that the store people say will work, but the containers do not list the specification for HyTran Ultra -- I forget the exact alphanumerics for it. I have asked here several times as to whether the NH fluid meets the specs for the Case fluid and no one seems able (or willing) to give a definitive answer, despite the fact that logic would dictate the two are the same. HyTran Ultra is about $10 to $11 a gallon. As far as I have seen (and I admit I haven't looked lately) it comes in only one weight. Does anyone know if there is a winter weight HyTran Ultra?

 

[DieselPower]

From what I see they go like this. Hy-Tran B-6, Hy-Tran PLUS (MS-1207), Hy-Tran ULTRA (MS-1209). I'll have to do some checking on the MS-1209 spec and see if I can dig up the requirements data sheet.

 

[Soundguy]

Okay, time for the dumb question -- If the 5W/20 fluid works well in summer, why would CNH even bother with the 10W/20? It would seem they would do their reputation a better service if the tractors were shipped ready for whatever climatic conditions they might encounter within a given region.

Price is my bet..

Soundguy

 

[daTeacha]

I don't know about price being the only thing. I seem to remember finding one oil at TSC that claimed to meet MS-1209, now that DieselPower has jogged my memory with the spec numbers. It was the same price as the dealer per gallon and only came in a 5 or 6 gallon pail, carried some brand name I never heard of, and claimed to meet several other specs, too. I didn't see any reason to buy it.

I still can't see why there would be a different spec number for the Case and NH versions of the tractor, though. Aren't they the same under the skin?

 

[Doc_Bob]

And now the ringer, folks!

Case is extremely specific about using only their hydraulic oil. There is nothing I can find at the general tractor stores (TSC, RKO) that even claims to have the same specs as Hy Tran Ultra.

Same with NH.
Bob