The most critical ingredient to blower maintenance is proper lubrication. You can find the recommended lubrication guidelines in your blower’s operating manual. We have compiled guidelines here for quick reference. Use the links below to jump to a specific section:
Please note, the amounts listed in your manual and on this website are an approximate amount of oil to have on hand for the oil change.
When adding oil to your blower, the correct oil level in the oil sump is determined strictly by using the oil sight glass or oil level plug. Make sure you use these indicators so you do not overfill the unit!
Roots URAI Blowers – Oil and Grease requirements
The Roots Universal RAI® series utilizes grease on the drive end and oil on the gear end.
| MODEL | OIL – DRIVE END VERTICAL |
OIL – DRIVE END HORIZONTAL |
OIL – GEAR END VERTICAL |
OIL – GEAR END HORIZONTAL |
GREASE |
|---|---|---|---|---|---|
| URAI 22 | N/A | N/A | 3.4 Fl. Oz | 6.1 Fl. Oz | Drive End |
| URAI 24 | N/A | N/A | 3.4 Fl. Oz | 6.1 Fl. Oz | Drive End |
| URAI 32 | N/A | N/A | 8.5 Fl. Oz | 10.5 Fl. Oz | Drive End |
| URAI 33 | N/A | N/A | 8.5 Fl. Oz | 10.5 Fl. Oz | Drive End |
| URAI 36 | N/A | N/A | 8.5 Fl. Oz | 10.5 Fl. Oz | Drive End |
| URAI 42 | N/A | N/A | 12.7 Fl. Oz | 14.5 Fl. Oz | Drive End |
| URAI 45 | N/A | N/A | 12.7 Fl. Oz | 14.5 Fl. Oz | Drive End |
| URAI 47 | N/A | N/A | 12.7 Fl. Oz | 14.5 Fl. Oz | Drive End |
| URAI 53 | N/A | N/A | 16 Fl. Oz | 27.6 Fl. Oz | Drive End |
| URAI 56 | N/A | N/A | 16 Fl. Oz | 27.6 Fl. Oz | Drive End |
| URAI 59 | N/A | N/A | 16 Fl. Oz | 27.6 Fl. Oz | Drive End |
| URAI 65 | N/A | N/A | 28.3 Fl. Oz | 52.1 Fl. Oz | Drive End |
| URAI 68 | N/A | N/A | 28.3 Fl. Oz | 52.1 Fl. Oz | Drive End |
| URAI 615 | N/A | N/A | 28.3 Fl. Oz | 52.1 Fl. Oz | Drive End |
| URAI 76 | N/A | N/A | 32.3 Fl. Oz | 59.5 Fl. Oz | Drive End |
| URAI 711 | N/A | N/A | 32.3 Fl. Oz | 59.5 Fl. Oz | Drive End |
| URAI 718 | N/A | N/A | 32.3 Fl. Oz | 59.5 Fl. Oz | Drive End |
| URAI-DSL 32 | 4 Fl. Oz | 6.5 Fl. Oz | 8.5 Fl. Oz | 10.5 Fl. Oz | N/A |
| URAI-DSL 33 | 4 Fl. Oz | 6.5 Fl. Oz | 8.5 Fl. Oz | 10.5 Fl. Oz | N/A |
| URAI-DSL 36 | 4 Fl. Oz | 6.5 Fl. Oz | 8.5 Fl. Oz | 10.5 Fl. Oz | N/A |
| URAI-DSL 42 | 5.5 Fl. Oz | 10.8 Fl. Oz | 12.7 Fl. Oz | 14.5 Fl. Oz | N/A |
| URAI-DSL 45 | 5.5 Fl. Oz | 10.8 Fl. Oz | 12.7 Fl. Oz | 14.5 Fl. Oz | N/A |
| URAI-DSL 47 | 5.5 Fl. Oz | 10.8 Fl. Oz | 12.7 Fl. Oz | 14.5 Fl. Oz | N/A |
| URAI-DSL 53 | 7.5 Fl. Oz | 14.8 Fl. Oz | 16 Fl. Oz | 27.6 Fl. Oz | N/A |
| URAI-DSL 56 | 7.5 Fl. Oz | 14.8 Fl. Oz | 16 Fl. Oz | 27.6 Fl. Oz | N/A |
| URAI-DSL 59 | 7.5 Fl. Oz | 14.8 Fl. Oz | 16 Fl. Oz | 27.6 Fl. Oz | N/A |
| URAI-DSL 65 | 16 Fl. Oz | 31 Fl. Oz | 28.3 Fl. Oz | 52.1 Fl. Oz | N/A |
| URAI-DSL 68 | 16 Fl. Oz | 31 Fl. Oz | 28.3 Fl. Oz | 52.1 Fl. Oz | N/A |
| URAI-DSL 615 | 16 Fl. Oz | 31 Fl. Oz | 28.3 Fl. Oz | 52.1 Fl. Oz | N/A |
| URAI-J 33 | N/A | N/A | 8.5 Fl. Oz | 10.5 Fl. Oz | Drive End |
| URAI-J 36 | N/A | N/A | 8.5 Fl. Oz | 10.5 Fl. Oz | Drive End |
| URAI-J 45 | N/A | N/A | 12.7 Fl. Oz | 14.5 Fl. Oz | Drive End |
| URAI-J 47 | N/A | N/A | 12.7 Fl. Oz | 14.5 Fl. Oz | Drive End |
| URAI-J 56 | N/A | N/A | 16 Fl. Oz | 27.6 Fl. Oz | Drive End |
| URAI-J-DSL 33 | 4 Fl. Oz | 6.5 Fl. Oz | 8.5 Fl. Oz | 10.5 Fl. Oz | N/A |
| URAI-J-DSL 36 | 4 Fl. Oz | 6.5 Fl. Oz | 8.5 Fl. Oz | 10.5 Fl. Oz | N/A |
| URAI-J-DSL 45 | 5.5 Fl. Oz | 10.8 Fl. Oz | 12.7 Fl. Oz | 14.5 Fl. Oz | N/A |
| URAI-J-DSL 47 | 5.5 Fl. Oz | 10.8 Fl. Oz | 12.7 Fl. Oz | 14.5 Fl. Oz | N/A |
| URAI-J-DSL 56 | 7.5 Fl. Oz | 14.8 Fl. Oz | 16 Fl. Oz | 27.6 Fl. Oz | N/A |
| URAI-G 32 | N/A | N/A | 8.5 Fl. Oz | 10.5 Fl. Oz | Drive End |
| URAI-G 33 | N/A | N/A | 8.5 Fl. Oz | 10.5 Fl. Oz | Drive End |
| URAI-G 36 | N/A | N/A | 8.5 Fl. Oz | 10.5 Fl. Oz | Drive End |
| URAI-G 42 | N/A | N/A | 12.7 Fl. Oz | 14.5 Fl. Oz | Drive End |
| URAI-G 45 | N/A | N/A | 12.7 Fl. Oz | 14.5 Fl. Oz | Drive End |
| URAI-G 47 | N/A | N/A | 12.7 Fl. Oz | 14.5 Fl. Oz | Drive End |
| URAI-G 53 | N/A | N/A | 16 Fl. Oz | 27.6 Fl. Oz | Drive End |
| URAI-G 56 | N/A | N/A | 16 Fl. Oz | 27.6 Fl. Oz | Drive End |
| URAI-G 59 | N/A | N/A | 16 Fl. Oz | 27.6 Fl. Oz | Drive End |
| URAI-G 65 | N/A | N/A | 28.3 Fl. Oz | 52.1 Fl. Oz | Drive End |
| URAI-G 68 | N/A | N/A | 28.3 Fl. Oz | 52.1 Fl. Oz | Drive End |
| URAI-G 615 | N/A | N/A | 28.3 Fl. Oz | 52.1 Fl. Oz | Drive End |
Roots RAM Blowers – Oil requirements
The Roots RAM series utilizes oil on both the drive end and gear end. The following oil guidelines apply to the RAM, RAM-J and RAM-GJ series of blowers.
| MODEL | OIL – DRIVE END VERTICAL |
OIL – DRIVE END HORIZONTAL |
OIL – GEAR END VERTICAL |
OIL – GEAR END HORIZONTAL |
|---|---|---|---|---|
| 404 | 9 Fl. Oz. | 19 Fl. Oz. | 18 Fl. Oz. | 36 Fl. Oz. |
| 406 | 9 Fl. Oz. | 19 Fl. Oz. | 18 Fl. Oz. | 36 Fl. Oz. |
| 409 | 9 Fl. Oz. | 19 Fl. Oz. | 18 Fl. Oz. | 36 Fl. Oz. |
| 412 | 9 Fl. Oz. | 19 Fl. Oz. | 18 Fl. Oz. | 36 Fl. Oz. |
| 418 | 9 Fl. Oz. | 19 Fl. Oz. | 18 Fl. Oz. | 36 Fl. Oz. |
| 612 | 28 Fl. Oz. | 50 Fl. Oz. | 55 Fl. Oz. | 95 Fl. Oz. |
| 616 | 28 Fl. Oz. | 50 Fl. Oz. | 55 Fl. Oz. | 95 Fl. Oz. |
| 624 | 28 Fl. Oz. | 50 Fl. Oz. | 55 Fl. Oz. | 95 Fl. Oz. |
Sutorbilt Legend Blowers – Oil and Grease requirements
Like the Roots URAI series, the Sutorbilt Legend series utilizes grease on the drive end and oil on the gear end.
| MODEL | OIL – DRIVE END VERTICAL |
OIL – DRIVE END HORIZONTAL |
OIL – GEAR END VERTICAL |
OIL – GEAR END HORIZONTAL |
GREASE |
|---|---|---|---|---|---|
| MODEL | VERTICAL | HORIZONTAL | VERTICAL | HORIZONTAL | GREASE |
| Legend 2M | N/A | N/A | 4 Fl. Oz. | 8 Fl. Oz. | Drive End |
| Legend 2L | N/A | N/A | 4 Fl. Oz. | 8 Fl. Oz. | Drive End |
| Legend 3H | N/A | N/A | 9 Fl. Oz. | 18 Fl. Oz. | Drive End |
| Legend 3M | N/A | N/A | 9 Fl. Oz. | 18 Fl. Oz. | Drive End |
| Legend 3L | N/A | N/A | 9 Fl. Oz. | 18 Fl. Oz. | Drive End |
| Legend 4H | N/A | N/A | 14 Fl. Oz. | 24 Fl. Oz. | Drive End |
| Legend 4M | N/A | N/A | 14 Fl. Oz. | 24 Fl. Oz. | Drive End |
| Legend 4L | N/A | N/A | 14 Fl. Oz. | 24 Fl. Oz. | Drive End |
| Legend 5H | N/A | N/A | 18 Fl. Oz. | 40 Fl. Oz. | Drive End |
| Legend 5M | N/A | N/A | 18 Fl. Oz. | 40 Fl. Oz. | Drive End |
| Legend 5L | N/A | N/A | 18 Fl. Oz. | 40 Fl. Oz. | Drive End |
| Legend 6H | N/A | N/A | 29 Fl. Oz. | 68 Fl. Oz. | Drive End |
| Legend 6M | N/A | N/A | 29 Fl. Oz. | 68 Fl. Oz. | Drive End |
| Legend 6L | N/A | N/A | 29 Fl. Oz. | 68 Fl. Oz. | Drive End |
| Legend 7H | N/A | N/A | 26.7 Fl. Oz. | 56 Fl. Oz. | Drive End |
| Legend 7M | N/A | N/A | 26.7 Fl. Oz. | 56 Fl. Oz. | Drive End |
| Legend 7L | N/A | N/A | 26.7 Fl. Oz. | 56 Fl. Oz. | Drive End |
| Legend 8H | N/A | N/A | 40 Fl. Oz. | 112 Fl. Oz. | Drive End |
| Legend 8M | N/A | N/A | 40 Fl. Oz. | 112 Fl. Oz. | Drive End |
| Legend 8L | N/A | N/A | 40 Fl. Oz. | 112 Fl. Oz. | Drive End |
| Legend DSL 3H | 5 Fl. Oz. | 9 Fl. Oz. | 9 Fl. Oz. | 18 Fl. Oz. | N/A |
| Legend DSL 3M | 5 Fl. Oz. | 9 Fl. Oz. | 9 Fl. Oz. | 18 Fl. Oz. | N/A |
| Legend DSL 3L | 5 Fl. Oz. | 9 Fl. Oz. | 9 Fl. Oz. | 18 Fl. Oz. | N/A |
| Legend DSL 4H | 6 Fl. Oz. | 11 Fl. Oz. | 14 Fl. Oz. | 24 Fl. Oz. | N/A |
| Legend DSL 4M | 6 Fl. Oz. | 11 Fl. Oz. | 14 Fl. Oz. | 24 Fl. Oz. | N/A |
| Legend DSL 4L | 6 Fl. Oz. | 11 Fl. Oz. | 14 Fl. Oz. | 24 Fl. Oz. | N/A |
| Legend DSL 5H | 9 Fl. Oz. | 19.1 Fl. Oz. | 18 Fl. Oz. | 40 Fl. Oz. | N/A |
| Legend DSL 5M | 9 Fl. Oz. | 19.1 Fl. Oz. | 18 Fl. Oz. | 40 Fl. Oz. | N/A |
| Legend DSL 5L | 9 Fl. Oz. | 19.1 Fl. Oz. | 18 Fl. Oz. | 40 Fl. Oz. | N/A |
| Legend DSL 6H | 17 Fl. Oz. | 32 Fl. Oz. | 29 Fl. Oz. | 68 Fl. Oz. | N/A |
| Legend DSL 6M | 17 Fl. Oz. | 32 Fl. Oz. | 29 Fl. Oz. | 68 Fl. Oz. | N/A |
| Legend DSL 6L | 17 Fl. Oz. | 32 Fl. Oz. | 29 Fl. Oz. | 68 Fl. Oz. | N/A |
Gardner Denver DuroFlow Blowers – Oil requirements
Like the RootsFLO series, DuroFlow blowers utilize oil on both the drive and gear end. On 3″ and 4″ DuroFlow models, the gear end and drive end are interconnected so the oil is only added through one single port; on the larger 7″ units oil must be added to both ends of the blower.
| MODEL | OIL – DRIVE END VERTICAL |
OIL – DRIVE END HORIZONTAL |
OIL – GEAR END VERTICAL |
OIL – GEAR END HORIZONTAL |
|---|---|---|---|---|
| DuroFlow 3004 | 16 Fl. Oz. | 28 Fl. Oz. | Gear end and drive end are connected; a single port fills both sides | |
| DuroFlow 3006 | 16 Fl. Oz. | 28 Fl. Oz. | ||
| DuroFlow 4504 | 29 Fl. Oz. | 55 Fl. Oz. | ||
| DuroFlow 4506 | 29 Fl. Oz. | 55 Fl. Oz. | ||
| DuroFlow 4509 | 29 Fl. Oz. | 55 Fl. Oz. | ||
| DuroFlow 4512 | 29 Fl. Oz. | 55 Fl. Oz. | ||
| DuroFlow 4518 | 29 Fl. Oz. | 55 Fl. Oz. | ||
| DuroFlow 7009 | 48 Fl. Oz. | 123 Fl. Oz. | 64 Fl. Oz. | 160 Fl. Oz. |
| DuroFlow 7012 | 48 Fl. Oz. | 123 Fl. Oz. | 64 Fl. Oz. | 160 Fl. Oz. |
| DuroFlow 7015 | 48 Fl. Oz. | 123 Fl. Oz. | 64 Fl. Oz. | 160 Fl. Oz. |
| DuroFlow 7018 | 48 Fl. Oz. | 123 Fl. Oz. | 64 Fl. Oz. | 160 Fl. Oz. |
| DuroFlow 7023 | 48 Fl. Oz. | 123 Fl. Oz. | 64 Fl. Oz. | 160 Fl. Oz. |
| DuroFlow 7028 | 48 Fl. Oz. | 123 Fl. Oz. | 64 Fl. Oz. | 160 Fl. Oz. |