Woods Brush Hog Gear Oil

[Buckchaser]

Could anyone tell me what type gear oil is best for an older Woods Brush Hog and also for a King Kutter tiller ?

 

[Dman1981]

I use 75-140 synthetic in everything
But I do live in ca where it's hot then hotter

 

[Quebecguy]

Could anyone tell me what type gear oil is best for an older Woods Brush Hog and also for a King Kutter tiller ?

The Owners Manual for my 1976 Woods M5-4 Rotary Cutter says to use #90 transmission oil (also called gear oil).

 

[rScotty]

The Owners Manual for my 1976 Woods M5-4 Rotary Cutter says to use #90 transmission oil (also called gear oil).

There are better gear oils now, plus they have a wider viscosity range. 75w-90 would be a good choice. It flows at low temperature a lot like 20w motor oil, but has the shear resistance of a 90wt gear oil.
rScotty

 

[Dman1981]

75-140 is gear oil just use the synthetic pricey but worth the money
They sell in 80 90 weight also
But use what you are comfortable with

 

[big bubba]

older mower seals might be at risk with full synthetic having used dyno all it's life, but that may well be a myth for modern synthetics
but agree, 75/180 syn would cover all the needs, regards

 

[Buckchaser]

Thank You All.