GD-421 Moly Treatment for SAE 75W-90 Synthetic Gear Oil
Applications
GD-421 Moly Treatment for SAE 75W-90 Synthetic Gear Oil is a treatment designed for a multiviscosity oil, but it may be used with all grades of synthetic gear oils, as well as mineral gear oils. NOT RECOMMENDED TO BE ADDED TO OILS FOR LIMITED SLIP DIFFERENTIALS and WET CLUTCHES.
Benefits
GD-421 is a premium treatment.
Molybdenum disulfide “moly“ is a solid film lubricant* with a low coefficient of friction and an affinity for steel. The moly decreases friction of the two counter-moving sliding surfaces of gear teeth by filling in microscopic pores of the metal surfaces and plating out over the surface. The moly will not settle out, and it will flow through all standard filters.
In vehicles with manual transmissions GD-421 improves shifting, reduces noise, helps to eliminate notchy, balky and irregular shifting.
Guard Dog protects the gears from wear, which extends the life of them
* Explained in our Frequently Asked Questions
Typical Observations
GD-421 is a proprietary formula of synthetic oils and molybdenum compounds. The blend is formulated to yield a high percent of moly in a plain synthetic gear oil when mixed according to instructions.
Before and after Tests: American Society of Testing Materials ASTM D 4172 Modified to 100ºC and 8 hours.
Brand A 75W-90 synthetic gear oil and the same oil after treated with GD-421
Result: GD-421 has reduced wear 21.6%
Brand B 75W-90 synthetic gear oil and the same oil after treated with GD-421.
Results:
GD421 has reduced wear 27%.
Brand C 75W-140 synthetic transmission/gear oil and the same oil after treated with GD-421.
Results:
GD-421 has reduced wear 6%.
How To Use
For 1 quart of plain synthetic oil, replace 4 oz. of oil with 4 oz. of
GD-421.
Warranty and Safety
Guard Dog warrants GD-421 to conform to published typical observations. Containers have a tamper-proof/child resistant cap. GD-421 is safe to use when normal precautions are taken, as with any petroleum product. GD-421 does not contain solvents or chlorinated paraffin. A Material Safety Data Sheet upon request.
Prices are EX Works (FOB Plant). A tax rate of 8.25% will be added to Texas residents.
