KIREI Gearbox GL 4221
KIREI Gearbox GL 4221 is a zinc-free additive package for the production of gear oils of API GL-5/GL-4 class and industrial oils of CLP class according to DIN 51517. The package contains highly effective antioxidants, anti-corrosion and anti-wear components based on sulfonated isobutylene. It ensures long oil service life, protects equipment from wear and deposit formation. Does not cause copper corrosion. Provides a high level of anti-wear performance in the FZG test. The typical treat rate of the package is 4.2% for API GL-5 oils, 2.1% for GL-4 oils, and 1.7% for CLP oils.
Specifications
KIREI Gearbox GL 4221 meets or is recommended as a replacement for oils API GL-5, API GL-4 and DIN 51517 Part 3 (CLP), ZF TE ML 05A/07A/16B/16C/17B/19B/21A, MIL L-2105D, MAN 342N.
| Indicator | Test Method | KIREI Gearbox GL 4221 |
|---|---|---|
| Appearance | Visual | Clear light-yellow liquid |
| Odor | - | Specific |
| Calcium content in GL-5 80W-90 oil (4.2% treat), ppm | ASTM D5185 | 48 |
| Phosphorus content in GL-5 80W-90 oil (4.2% treat), ppm | ASTM D5185 | 651 |
| Phosphorus content in GL-4 80W-90 oil (2.1% treat), ppm | ASTM D5185 | 326 |
| Acid number in GL-5 80W-90 oil (4.2% treat), mg KOH/g | ASTM D664 | 1.18 |
| Copper corrosion in GL-5 80W-90 oil (4.2% treat) | ASTM D130 | 1a |
| Weld load in GL-5 80W-90 oil (4.2% treat), N | ASTM D2596 | 3685 |
| FZG wear test, failure stage (1.7% treat) | DIN 51534-2 | ≥12 |
Note: The listed properties are typical and may be changed by the manufacturer without prior notice. Full compliance with specifications is guaranteed.