Atlas Copco Oil RS Ultra 20L – 1630 2041 20
Quick Specs
– Part Number: 1630 2041 20
– Description: Oil RS Ultra 20L
– Base Oil Type: Synthetic
– Product Status: Original
– Availability: In Stock
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The Atlas Copco Oil RS Ultra 20L (part no. 1630-2041-20) is a synthetic lubricant for Atlas Copco’s oil-injected screw compressors, compatible with the same GA, GR, G, and GX series as the RXD oil we also supply. Atlas Copco’s official sources give slightly different service life figures for this product — one source states 4,000 hours (or 2 years under demanding conditions), while another cites up to 6,000 hours — so we’d recommend confirming the exact interval against your compressor’s maintenance documentation rather than assuming either figure applies to your specific operating conditions.
This is a shorter-interval option compared to the RXD synthetic (rated 8,000 hours) for the same compressor range — worth weighing against RXD if you’re deciding between more frequent, lower-cost oil changes versus fewer changes at a higher per-liter cost. This part is also compatible with other Atlas Copco Group brands, including Quincy, Chicago Pneumatic, Belair, Pneumatech, and ABAC.
Technical Details
| Part Number | 1630204120 |
| Description | Oil RS Ultra 20L |
| Brand | Atlas Copco |
| Status | Original |
| Base Oil Type | Synthetic |
| Service Life | 4,000–6,000 hours |
| Weight | 18kg |
| Dimension | 29*24*39cm |
| Packaging | Drum |
| Availability | In Stock |
| Country of Origin | France |
Related Sizes
Also available in: 5L (1630204105)
Recommended Application
Oil-injected screw compressors — GA, GR, G, GX series
Why Genuine Oil Matters
Genuine Atlas Copco lubricants are formulated with specific additive packages for oxidation stability, and are tested for compatibility with the seal and gasket materials used in Atlas Copco air ends.Non-genuine or off-spec oils can shorten air end service life and may affect manufacturer warranty terms —this is one area where the cost difference rarely justifies the risk on a component as critical as the air end.
Flushing When Changing Oil Type
Do You Need to Flush the System?
If you’re switching between oil types (e.g.,mineral to synthetic,or between different synthetic chemistries),a system flush is generally
recommended to remove residual oil and prevent cross-contamination.Continuing to top up with a different oil type without flushing can gradually degrade lubrication performance.
Common Questions
Can this oil be mixed with other brands or types?
We recommend against mixing different oil chemistries (mineral,PAO,PAG synthetic)unless confirmed compatible —mixing can cause sludging or reduced lubrication performance.If switching brands,a system flush is the safer option.
How long does one container last?
This depends on your compressor’s oil capacity and running hours — send us your compressor model and typical duty cycle,and we
can help estimate consumption.
How long can this oil be stored before use?
Unopened containers stored properly (sealed, indoors ,stable temperature)retain quality well.Once opened,we recommend using the oil within a reasonable timeframe rather than keeping it as long-term backup stock.
Are these genuine Atlas Copco lubricants?
Yes.Parts are sourced through Atlas Copco distributor channels.
Do I need to change the oil filter at the same time?
Yes — changing the oil filter alongside the oil itself is standard practice,since a saturated filter will contaminate fresh oil almost immediately.
Do you inspect parts before shipment?
Yes. We provide full photos and video of the actual item before shipment, and confirm everything is correct with you prior to dispatch.
What shipping options are available?
If you have your own freight forwarder, we can ship to them directly. If not, we can provide shipping options based on your preference.