With all due respect mkirsch, I worked for CNH Parts & Service, a division of CNH that supports the brands. I am now working for a different division of CNH. I have traveled with reps from Viscosity Oil. This company is the only company that has ever produced the additive package for HyTran. It is produced in the USA and shipped around the world. Honestly, from the lube seminars we put on for customers, we told them that if you don't want to use our oil fine. We highly suggest you use an OEM oil that has a robust additive package that has been highly tested. We have done tests. Heated o-rings in oil for example. One in the yellow bucket oil and another in HyTran. Heated to the same temperature and held there for 12 hours (long work day). The o- rings from the yellow bucket oil became brittle. The HyTran o- rings remained supple and flexible. The additive package made the difference. Do you know how much oil is in a 5 gallon bucket of HyTran? A little over 4 gallons. No, that's not why the bucket wasn't filled to the top, it had about a gallon of additives in it.
You still missed the point about these companies meeting the specs. Most of these all makes oils are 20wt oils. It would not meet the specs of a 10w30 then would it? It also wouldn't meet the specs of a 10wt. So, if it is lying on the bucket that it meets both specs, what else are they fudging.
But lets talk about the specs. How do these other companies know the specs? There is no spec rating for hydraulic oil. Honest. There is an API spec for engine oils, but not hydraulic oils. So, CNH knows their specs, Deere knows theres, AGCO knows theres. How do these independent companies know exactly what they have as a spec for each additive package? The answer is they don't
You asked why you wouldn't want an oil heavier than lighter? Well, when an oil creates too much resistance in a pump, seals get blown. This is one reaction. Horsepower loss can also occur. Hydraulic valves may not function properly either. Usually, all these get blamed on the tractor, not the cheap oil.
To your comment about corporate brainwashing, you are wrong. Facts are hard to argue. If you still feel that you are correct and I am just brainwashed, let me leave you with this challenge.
What oil do you use in your car? Walmart sells this oil called Accel. I mean a heavier oil is fine and why would you want one of those multi-viscosity oils anyways, so just get the straight 30 weight. Your truck might call for 15w40, so it meets in the middle. I mean they probably put some 15wt and 40wt in that oil anyways, so 30wt will be fine. Interesting thing about the back of this Accel oil. Here's what the bottle says (taken off Walmart's site):ACCEL Non-Detergent 30W Motor Oil, 1 qt:
Recommended for compressors and hydraulic systems that require non-detergent oils Effective in lubrication of bearings and chains in non-critical "once through" systems Economical Good shear stability Good lubricity Straight mineral oil Good flow characteristics
Oh, it also says this: Not for use in automotive gasoline engines
Soooo.....since you have the attitude that all oils are the same, why don't you start using this as your new oil in your car or truck.
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