What weight is Mobil SHC 634?
SAE 140 wt.
SHC 634 is a SAE 140 wt. oil while SHC 630 is a SAE 90 wt.
What is Mobil SHC 634 used for?
Mobil SHC 634 gear oil is designed to provide outstanding and balanced performance and longer oil life in demanding applications at high and low temperatures. The product is also resistant to mechanical shear, even in heavily loaded gear applications.
What is the viscosity of Mobil SHC 634?
430 cST @
SPECIFICATIONS
| ISO Grade | 460 |
|---|---|
| Composition | Synthetic |
| Container Size | 5 gal |
| Viscosity | 430 cST @ 40 °C, 48.5 cST @ 100 °C |
What is the difference between 80W90 and 85W140 gear oil?
The viscosity chart rates the 80W90 up to 95 degrees while the 85W140 is rated up to 120 degrees.
What does ISO stand for oil?
International Standards Organization Viscosity Grade
ISO VG stands for “International Standards Organization Viscosity Grade” and is reported in numbers ranging from 2 all the way up to 1500. This number is critical because a lubricant’s viscosity is the single most important factor when selecting the right oil for your machinery.
What happens if gearbox oil is too thick?
If the oil is too thick or too thin excess wear will be caused on the synchronizer rings and they will not engage smoothly. Bearings need the right amount of oil flowing to and from them otherwise they suffer from overheating and premature wear.
Can you mix synthetic gear oil with regular gear oil?
Yes. There is no danger mixing synthetic and conventional motor oil. However, conventional oil will detract from the superior performance of synthetic oil and reduce its benefits.
What is the thickest gear oil you can get?
The SAE grading system indicates oil viscosity in simple numbers ranging from the thin oil (10) to the very thick oil (140 or above). Heavier weight, or higher grade oil is more viscous and therefore thicker as it flows between the gears. Light grade oil is ideal for small, fast, polished gears under a light load.