Posted by sotxbill on June 04, 2021 at 14:40:59 from (104.5.24.112):
In Reply to: 303 oil posted by Gene Davis (Ga.) on June 03, 2021 at 10:30:18:
maybe....,,,
303 oils were superseded when higher pressures and flow rates required in neweer model tractors... generated more heat. SO in most tractor hydraulics after 1976-80, they no longer were suitable AND>>>> the key viscosity additive was whale oil which became banned by an international treaty... so overnite these fluids fell out of favor and newer mineral oils with modern viscosity improvers... had to be specified. 303 fluids could be run in applications where there were wet brakes and wet clutches and were very close to "type F" auto transmission fluids.
so yes as a basic hydraulic only fluid, it would probably work fine.
There are a lot of pre 80s backhoes/tractors out there still using it.
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Today's Featured Article - Bad Vibes - by Curtis Von Fange. One of the strangest ways to communicate with our tractor is to ask it how it feels. "Ask it how it feels," you say? Yup, ask it how it feels. Now, as with the other articles in this series one has to be able to hear what 'ole blue' is trying to say in response. The nice thing about our old iron friends is that they are usually quite consistent in their response, rather unlike some people I know who might change what they say due to the weather or other mitigating circumstances. But since t
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