Best Lithium Grease for Polyurethane Bushings (2026)
5 lithium greases for polyurethane bushings, compared by drop point, washout, NLGI grade and temperature range.
On this page
Top picks at a glance
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- 1
Best OverallRepublic Oil Red EP29.7/10View on Amazon - 2
Best High TempTriax Spheron 14oz9.6/10View on Amazon - 3
Best for Many MachinesGreen Grease 14oz9.5/10View on Amazon - 4
Best MarineBTAS 2-4-C Marine 8oz9.4/10View on Amazon
The suspension job starts with a squeak over every bump and ends with the car on stands, the old bushings out and a grease gun loaded for the new ones. Polyurethane bushings need a grease that stays put, resists washout and keeps working through heat and road grime, and lithium grease is the usual pick for the job. This guide compares the best lithium grease for polyurethane bushings from the listings, using only what each one states about base, grade, drop point, washout and pack size, so the tube or cartridge matches the job.
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Quick picks
- Best Overall Republic Oil Red EP2: NLGI GC-LB and ASTM D4950 stated, a 500°F dropping point and 10 tubes of 14 oz for the shop. Check price on Amazon
- Best High Temp Triax Spheron 14oz: A 600°F+ drop point, a temperature range of -30°F to 450°F and less than 1% washout in a 14 oz tube. Check price on Amazon
- Best for Many Machines Green Grease 14oz: A 500°F drop point, an 80lb Timken load and less than 2% washout, for wheel bearings, suspension and axles. Check price on Amazon
- Best Marine BTAS 2-4-C Marine 8oz: PTFE in a lithium-based formula, a range of -40°F to 302°F and a stated re-lubrication interval of 3-6 months. Check price on Amazon
Picks for the garage
Republic Oil Premium Red #2 EP2 Lithium Complex
A pack of 10 tubes of 14 oz EP2 lithium complex grease with a 500°F dropping point and NLGI GC-LB, for wheel bearings, chassis, 5th wheels and heavy equipment.
Pros
- NLGI GC-LB and ASTM D4950 stated, the only certification here
- 500°F dropping point for high temperature work
- 10 tubes of 14 oz, for a shop that greases often
- Made in the USA, with rust and corrosion prevention stated
Cons
- No water washout figure stated, only a resistance claim
- No temperature range stated, only a drop point
- 10 tubes is a large pack for a single bushing job
- No warranty term in the listing
TRIAX Spheron High Temp Wheel Bearing Grease
A 14 oz tube of tacky NLGI 2 lithium complex grease with a 600°F+ drop point and less than 1% washout, for wheel bearings, disc-brake hubs and 5th wheels.
Pros
- 600°F+ drop point, the highest stated here
- Temperature range of -30°F to 450°F stated
- Less than 1% washout, the lowest figure stated here
- 700 kgf four-ball weld load for high loads
Cons
- No industry certification stated
- No warranty term in the listing
- Single 14 oz tube, no bulk pack stated
- No re-lubrication interval stated
14oz Ultra Heavy Duty Green Grease Tube for Grease
A 14 oz tube of NLGI 2 lithium grease with a 500°F drop point, an 80lb Timken load and a water washout level of less than 2%, for wheel bearings, suspension, CV joints and axles.
Pros
- 500°F drop point with an 80lb Timken load
- 800KG weld load stated
- Water washout level of less than 2%
- Claims 8X longer lasting, proven for 25 years per the listing
Cons
- No industry certification stated
- No warranty term in the listing
- No temperature range stated, only a drop point
- No re-lubrication interval stated
BTAS 2‑4‑C Marine Grease with PTFE for Boat
An 8 oz tube of NLGI 2 lithium-based marine grease with PTFE, rated -40°F to 302°F with a short-term peak up to 338°F, for boat and trailer bearings.
Pros
- Continuous range of -40°F to 302°F stated, with a 338°F peak
- PTFE in a lithium-based formula, for low friction
- Re-lubrication interval stated: every 3-6 months
- Resists water washout and permeation, per the listing
Cons
- 8 oz is the smallest tube here
- Marine framing, not a general garage grease
- No industry certification stated
- No warranty term in the listing
Pro Grease - White Lithium - 10oz
A pack of 3 cans of 10 oz white lithium grease spray with ceramic technology, for gears, bearings, tracks, cables, power tools and automotive components.
Pros
- Aerosol spray, no grease gun needed
- Pack of 3 cans of 10 oz each
- Ceramic technology for reduced friction, per the listing
- Stays in place and will not run, freeze or wash off, per the listing
Cons
- No drop point stated
- No temperature range stated
- No NLGI grade stated
- No warranty term in the listing
Compared on paper
| Model | Base | NLGI grade | Drop point | Washout | Temp range | Size |
|---|---|---|---|---|---|---|
| Republic Oil Red EP2 | Lithium complex | NLGI 2, GC-LB | 500°F | Not stated | Not stated | 10 x 14 oz |
| Triax Spheron 14oz | Lithium complex | NLGI 2 | 600°F+ | Under 1% | -30°F to 450°F | 14 oz |
| Green Grease 14oz | Lithium | NLGI 2 | 500°F | Under 2% | Not stated | 14 oz |
| BTAS 2-4-C Marine 8oz | Lithium-based | NLGI 2 | Not stated | Resists washout | -40°F to 302°F | 8 oz |
| DuPont White Lithium | White lithium | Not stated | Not stated | Not stated | Not stated | 10 oz x 3 |
Specifications are manufacturer rated, as published on each listing and collected 4 November 2026. Drop point is the temperature where the grease turns liquid, where the listing states one; washout is the water washout figure where the listing states one.
How the picks were scored
Each pick is scored on performance, build, value, safety and warranty, with the weights published on the How We Pick page. A spec the listing does not publish scores nothing, and a safety point needs a stated standard or safety feature, not a general claim.
| Product | Shop Score | Perf. /35 | Build /25 | Value /25 | Safety /10 | Warranty /5 |
|---|---|---|---|---|---|---|
| Republic Oil Red EP2 | 9.7 | 32 | 22 | 21 | 8 | 0 |
| Triax Spheron 14oz | 9.6 | 33 | 22 | 21 | 0 | 0 |
| Green Grease 14oz | 9.5 | 30 | 21 | 20 | 0 | 0 |
| BTAS 2-4-C Marine 8oz | 9.4 | 28 | 20 | 19 | 0 | 0 |
| DuPont White Lithium | 9.3 | 26 | 19 | 19 | 0 | 0 |
Scores run from 9.2 to 9.8: each product’s point total is placed on that range, so more points always means a higher score.
What the listings tell you
None of the listings names polyurethane bushings. The picks below are lithium greases ranked on the properties a bushing job needs: a lithium base, an NLGI 2 grade, washout resistance and a stated temperature range. Only the Republic Oil listing states an NLGI GC-LB classification and an ASTM standard. Only the BTAS listing states a re-lubrication interval. The DuPont listing states no drop point, no temperature range and no washout figure, so those cells are Not stated in the table.
Buying guide: choosing the best lithium grease for polyurethane bushings
Lithium base and NLGI grade
All 5 picks here are lithium greases, and 4 state an NLGI 2 grade: Republic Oil, Green Grease, BTAS and Triax. The Republic Oil and Triax listings state a lithium complex formula, while the BTAS listing states a lithium-based formula with PTFE. The DuPont listing calls its grease white lithium but states no NLGI grade. Match the grade to the grease gun and the fitting, and read the listing for the base it states.
Drop point and temperature range
Drop point is the temperature where grease turns liquid. The Triax listing states a 600°F+ drop point with a temperature range of -30°F to 450°F. The Republic Oil and Green Grease listings each state a 500°F dropping point. The BTAS listing states a continuous range of -40°F to 302°F with a short-term peak up to 338°F. The DuPont listing states no drop point and no temperature range. Match the stated range to the warmest part of the job.
Washout resistance
Bushings live in road spray, so washout matters. The Triax listing states less than 1% washout, and the Green Grease listing states a water washout level of less than 2%. The Republic Oil listing claims high water washout resistance with no figure stated. The BTAS listing says its grease resists water washout and water permeation after splashing and immersion. The DuPont listing states no washout figure.
Tubes, cartridges and aerosol
Republic Oil comes as 10 tubes of 14 oz each, and the Green Grease and Triax picks come as a single 14 oz tube for a standard grease gun. The BTAS pick is an 8 oz tube. The DuPont pick is a 10 oz aerosol in a pack of 3, for spraying rather than pumping through a gun. Pick the format that fits the fittings on the job: cartridges for a grease gun, aerosol where a spray reaches better.
When to reapply
Only the BTAS listing states a re-lubrication interval: every 3-6 months in normal use, and before high-load sailing, racing or long-term storage. The other listings state no interval, so read the listing and the vehicle manual for the schedule. The Green Grease listing claims 8X longer lasting, and the Triax listing says its tackifier keeps it in place. Read the listing for the interval it states.
For the job itself, a cordless grease gun loads the 14 oz cartridges, and a bushing press tool seats the new bushings.
Use rated jack stands on solid ground, wear eye protection with power and air tools, keep fuel-burning equipment out of a closed garage, and follow the manual for every tool. Read our Safety Disclaimer.
Garage Fit Check
Check these before the first job, using only what each listing states:
- Grease gun fit: the Republic Oil, Green Grease and Triax tubes are 14 oz cartridges for a standard grease gun, per the listings.
- Pack size: Republic Oil comes as 10 tubes of 14 oz, so it suits a shop that greases often; the other picks come as a single tube or a pack of 3 aerosols.
- Storage: the BTAS listing says to reapply before long-term storage, and the Green Grease listing says its formula resists washout in fresh and salt water.
- Temperature: the Triax listing states a temperature range of -30°F to 450°F, and the BTAS listing states -40°F to 302°F, so match the stated range to the job.
FAQ: garage tools
When to use lithium grease?
Use lithium grease where the listing names the job: wheel bearings, chassis, suspension, 5th wheels and heavy equipment, per the Republic Oil and Green Grease listings. The Triax listing names wheel bearings, disc-brake hubs and 5th wheels, and the BTAS listing names marine engines, prop shafts, hinge pins, steering cables and boat trailer wheel bearings. Match the listing to the part.
What is lithium complex grease?
Lithium complex grease is a lithium grease with a complex thickener, per the Republic Oil and Triax listings, which state a lithium complex formula with an NLGI 2 grade. The Republic Oil listing states an EP2 grade with NLGI GC-LB and ASTM D4950, and the Triax listing states a 600°F+ drop point. The BTAS listing states a lithium-based formula with PTFE instead.
How to apply lithium grease?
Load a 14 oz cartridge into a standard grease gun for the Republic Oil, Green Grease and Triax picks, per the listings. The DuPont pick is a 10 oz aerosol, so spray it on the part instead. The BTAS pick is an 8 oz tube for marine and trailer bearings.
How much grease comes in each pick?
The Republic Oil pick comes as 10 tubes of 14 oz each. The Green Grease and Triax picks come as a single 14 oz tube. The BTAS pick is an 8 oz tube. The DuPont pick is a 10 oz aerosol in a pack of 3. Pick the pack size that covers the job.
Does lithium grease wash off in water?
It depends on the grease. The Triax listing states less than 1% washout, and the Green Grease listing states a water washout level of less than 2%. The BTAS listing says its grease resists water washout and water permeation after splashing and immersion. The Republic Oil listing claims high water washout resistance with no figure stated, and the DuPont listing states no washout figure.
Related: the lithium vs moly grease comparison, the lithium grease for tractor picks, the automotive chassis grease picks, the grease gun picks, and the engine and shop equipment hub.
