hygard for rear end oil in a 60

[ajdeereman]

can a guy run hygard in the rear end on a 60 all it does is tractor pulling
 

[LJD]

Seems the only issue would be if the oil will stay in and not slowly leak out. Hyguard has all the EP additives the tractor needs for hypoid/spur gear and bearing protection. It's the lower viscosity that might be an issue. Normal-grade Hyguard is 20W in engine-oil talk. Winter-grade Hygaurd is 10W in engine-oil talk. 90W GL-1 gear oil is 30W-40W in engine-oil talk.

Just bear in mind that engine oil viscosity is not the same as gear-oil viscosity so you have to put numbers in context. 90W gear oil = 30W-40W oil, etc.
 

[Tx Jim]

LJD
I sure thought 90W gear oil was a thicker consistency than 30-40 wt engine oil. So what's the formula to putting engine oil and gear oil wts in "context"? Thanks,Jim
 

[nlastovi]

[Mike M]

Gear oil is made to cling and stay onto the gears to protect them.
Machines made for hy-gard have oil pumps in the rear ends to help keep it flowing where it needs to go.

I guess you could try it and report back after awhile. At worst all it could do is ruin the rear end. LOL ! At best it may not even matter for limited use ? Your tractor your money.
 

[buickanddeere]

Hy-Gard or motor oil. Lots of stroked two cylinders with the cast wall between the crankcase and transmission.
Running Hy-Gard or motor oil in the transmission is also a "work around" for a leaking pto shaft seal.
 

[4020deereboy]

There's a chart in the John Deere fos manual that Crosses
gear oil weight to motor oil weight it says that they use the
higher numbers for gear oil so people don't confuse the two
oils
 

[wilamayb]

I guess for limited use it would be fine but the cost of hy-gard is much greater than the cost of gear lube.

The hygard will not coat and "run" the gears as gear lube would.

These two cylinders are straight cut gears with high tolerances. High tolerance fits usually use a heavy oil while low tolerance fits usually use a thinner oil.

In my opinion 60-630's always had the nosiest gears off all the two cylinders anyway... I never knew why?? I have owned several 720/730 tractors and they made little to no gear noise... The 620/630's I have owned and operated have all been noisy. If you live in a southern climate I would use the thickest oil I could find, otherwise the gearnoise may overpower that soothing "pop" of the engine :)

I can only imagine the gear noise with hygard if working till the trans oil actually got warm!!
 

[Texasmark1]

Well folks, on oil viscosities, I used to think that thicker was better till I bought a Dodge Hemi back in '07 and it was rated for 5W-20 and the users manual said that the oil pump was designed for that weight and you are to use it.....and then along comes Mobil 1 in the ecology label that is 0w-30 and replaces 5w-30 and 10w-30 (different engine) and satisfies mfgrs. warranties in the process....for my truck not my tractor. So my tractor has a Cummins diesel and I called Cummins and asked if I could use Shell Rotella T full Syn in the viscosity of 5w-40 and the reply I got was: "Sir your engine will LOVE that oil".

So with me, I just sucked it up and went with the OEM's recommendations.

Live and learn.

On oil viscosities, the problem is cold. That is where they really diverge and if you are in a cold climate, it can really make a difference in performance.

My 2c and it is the truth!!!!!!

Mark
 

[buickanddeere]

Engine built to use the low viscosity fuel efficiency oils have tighter clearances than engines designed for thicker oil.
An engine designed for 0W-20 can actually loose the oil wedge that separates the bearing from the shaft. If the oil is too thick.
 

[Texasmark1]

Yepper! But it still takes a new mindset to feel cozy about it after a lifetime of Heavy Duty oil for HD applications. I guess the current method of oil processing, base stocks, and additives improves the surface tension of the lube and you can get away with thin oil.

Mark