75W-90 instead of 15W-40 in trans/hydraulics ??
- Thread starter tdi-rick
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why do you want to do this? a mid weight 40 is about the same viscosity as a light 90wt gear oil. my dad's mid 60's Ferguson TO35 spec'd 90wt for the hydraulics/ trans/ rear end... even in the dead of summer the tractor was sluggish as **** when it was cold... in the winter forget about it, it wouldn't even move. my dad switched it out for Hytran ( I dunno if you have that down under) and things were vastly improved.
-Bret
-Bret
MolaKule
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I would say no, since there is are major differences in the additives used for hydrualic systems and engine oils verses gear lube.
You definitely don't want to use gear oil in this system and 15W40 isn't a very good choice either. You might want to consider one of the multipurpose tractor oils designed for combined systems. Something in the 30WT range would probably be good.
Rick,
they probably went for a 15W-40 engine oil for the wet brakes...the slicker gear oils could make braking a whole new experience.
Most of the mineral diesel engine oils are appropriate for tractor brakes, but there are better fluids (Mobilfuid 424), which are GL4 and allison C4 (wet clutch spec).
The Mobilfuid 424 (or agri 424) are an 80W (SAE30) 9.5cst@100C. Mobil reckon that they are High Viscosity Index Bastestocks, which is supported by -39C pour point.
It's done wonders for various japanese transmissions that don't like finding second gear in the mornings.
And last time I bought it, it was $19 for 5 litres, so cheap as chips compared to others.
they probably went for a 15W-40 engine oil for the wet brakes...the slicker gear oils could make braking a whole new experience.
Most of the mineral diesel engine oils are appropriate for tractor brakes, but there are better fluids (Mobilfuid 424), which are GL4 and allison C4 (wet clutch spec).
The Mobilfuid 424 (or agri 424) are an 80W (SAE30) 9.5cst@100C. Mobil reckon that they are High Viscosity Index Bastestocks, which is supported by -39C pour point.
It's done wonders for various japanese transmissions that don't like finding second gear in the mornings.
And last time I bought it, it was $19 for 5 litres, so cheap as chips compared to others.
Shannow,
wish someone had told the Fiat engineers that's what those pedals are for. I've driven some tractors with crook brakes, but this one is the worst.
Looking at Castrol's lubeguide, Agri MP plus seems to be their prime recommendation. Just can't seem to get their Agri website open at the moment.
Fuchs also have Titan UTTO.
A universal tractor transmission oil ideally suited to agricultural and industrial equipment operating under severe load conditions, requiring a common oil for transmission, differential, and final drives, hydraulics, wet clutches and wet brakes.
Specifications:
JI CASE 1206 MF M1135, 1141,1143
API GL4 Ford M2C 134A/B/C/D
AllisonC-4 Caterpillar R TO-2
Ford MC 86B/C John Deere J20C
The local NRMA dealer/motor mechanic in the village stocks Fuchs, and generally gives me a good deal on their oils, so this may be the most accessible fluid.
The strange thing is that in Fuchs' lubeguide, they recommend Titan Universal HD 15w-40 engine oil....
Looks like an email or phone call is in order.
Currently running Titan Ultralube 15W-40 in the engine.
Thanks Stinky. Looking into it.
Brian, unfortunately Schaeffer's isn't readily available here, yet. Apparently they are currently setting up distributors.
The systems I work with require TO-4 spec oil for compartments with friction material (brakes and transmissions). We have a number of people who like to use 15W40 in powershift transmissions but the component life is shortened and the oil rapidly shears to 20WT - 30Wt range, there are also potential liablilty issues due to using the incorrect fluid in systems with brakes (these are large mining trucks mainly).
Most of the Multipurpose Tractor Fluids will meet the older TO-2 spec for transmissions and this may or may not be OK for your application. If the tractor is old I'm sure you will be just fine. If you can't find a source go to the Cat dealer an ask for Cat MTO oil.
Most of the Multipurpose Tractor Fluids will meet the older TO-2 spec for transmissions and this may or may not be OK for your application. If the tractor is old I'm sure you will be just fine. If you can't find a source go to the Cat dealer an ask for Cat MTO oil.
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