I found this on earthtools.
OIL TYPE: For ALL walk-behind tractors with manual clutches (that is, for all machines
that do not have the BCS PowerSafe hydraulic clutch), the proper oil is a Gear Oil.
There are many different weights of Gear oil: 75w90, 80w90, 85w140, etc. etc. The weight
is actually not so important (any of the weights mentioned will work)?hat IS important is
whether the oil is approved for use WITH BRONZE GEARS (also called Yellow Metal gears). This
is because the final wheel drive gear (on the axle itself) in all walk-behind tractors is a
bronze worm gear. Most gear oils these days are safe for bronze/yellow metal gears, but a few
gear oils still contain sulfur, which can damage yellow metals such as bronze. So, whether
purchasing a synthetic or non-synthetic gear oil for your tractor, check the oil
specifications to make sure it is safe for 土ellow metal gears. BCS and Grillo
recommend an 80W90, GL-5 (EP) gear oil.
All the 80w90 gl5 oil contain sulphur-phosphorus technology.any ideas?
OIL TYPE: For ALL walk-behind tractors with manual clutches (that is, for all machines
that do not have the BCS PowerSafe hydraulic clutch), the proper oil is a Gear Oil.
There are many different weights of Gear oil: 75w90, 80w90, 85w140, etc. etc. The weight
is actually not so important (any of the weights mentioned will work)?hat IS important is
whether the oil is approved for use WITH BRONZE GEARS (also called Yellow Metal gears). This
is because the final wheel drive gear (on the axle itself) in all walk-behind tractors is a
bronze worm gear. Most gear oils these days are safe for bronze/yellow metal gears, but a few
gear oils still contain sulfur, which can damage yellow metals such as bronze. So, whether
purchasing a synthetic or non-synthetic gear oil for your tractor, check the oil
specifications to make sure it is safe for 土ellow metal gears. BCS and Grillo
recommend an 80W90, GL-5 (EP) gear oil.
All the 80w90 gl5 oil contain sulphur-phosphorus technology.any ideas?
