Complete Oil Specifications
Your 2021 Toyota Tundra with the 3UR-FE 5.7L V8 requires 0W-20 full synthetic oil meeting API SN Plus / ILSAC GF-5. The 2021 model year is the last generation of the legendary 3UR-FE V8 — Toyota replaced this engine entirely with the twin-turbo 3.5L V6 starting in 2022. Oil specs differ significantly from 2022+ Tundra models.
Quick Reference
| Specification | Value |
|---|---|
| Viscosity | 0W-20 |
| API Rating | API SN Plus |
| ILSAC Rating | GF-5 |
| Capacity (with filter) | 7.4 quarts |
| Oil Filter | Toyota 90915-YZZF1 |
| Normal Interval | 5000 miles |
The Last of the 3UR-FE V8
The 3UR-FE 5.7L V8 powered Toyota Tundra trucks from 2007 through 2021 — a 14-year run celebrated for durability and reliability. Its naturally aspirated design, dual overhead cams, and variable valve timing (VVT-iW on intake) made it one of the most trusted truck engines in North America.
At 7.4 quarts, the 3UR-FE holds significantly more oil than most modern turbocharged fours or V6s. This large sump is one of the reasons these engines regularly exceed 300,000 miles with proper maintenance.
Why 0W-20 for a Large V8
Despite its size, the 3UR-FE was designed from the outset to run 0W-20. Toyota’s variable valve timing system is hydraulically actuated — it requires the fast cold-flow of 0W-20 to function correctly on startup. Using 5W-30 causes sluggish VVT-i response during cold operation.
Using incorrect oil will:
- ❌ Delay VVT-i hydraulic cam phaser response on cold starts, causing rough idle
- ❌ Reduce fuel economy — 0W-20 was specified in part to meet truck CAFE standards
- ❌ Risk warranty violation on newer used examples still under Toyota’s powertrain coverage
Toyota-Approved Oil Brands
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✅ Toyota Genuine Motor Oil Full Synthetic 0W-20
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✅ Mobil 1 Extended Performance 0W-20
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✅ Pennzoil Ultra Platinum Full Synthetic 0W-20
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✅ Castrol Edge Full Synthetic 0W-20
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✅ Valvoline Advanced Full Synthetic 0W-20
Look for API SN Plus certification. The GF-5 / SN Plus standard includes LSPI protection that benefits even naturally aspirated engines in stop-and-go traffic.
Severe Service Check
You need the 3000-mile interval if you:
- Tow trailers at or near maximum capacity (10,200 lbs for 2021 Tundra)
- Haul maximum payload regularly
- Drive off-road in dusty or muddy conditions
- Operate in extreme temperatures below 0°F or above 100°F
Installation Details
Drain Plug Torque: 29 ft-lbs
OEM Filter: Toyota 90915-YZZF1
Aftermarket Filters:
-
Mobil 1 M1-108A
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K&N HP-1002
-
Bosch 3323
Pro Tip: At 7.4 quarts, always verify the dipstick reading after adding oil — it’s easy to over-fill a large V8. Bring the first 7 quarts in and verify with the dipstick before adding the final portion.
FAQs
What oil does a 2021 Toyota Tundra 5.7L V8 take? 0W-20 full synthetic oil meeting API SN Plus and ILSAC GF-5.
How many quarts does the 5.7L Tundra hold? 7.4 quarts with a new filter.
Is the 2021 Tundra engine the same as the 2022? No. The 2022 Tundra replaced the 3UR-FE V8 entirely with a new twin-turbo 3.5L V6 (V35A-FTS). The oil capacity, filter, and standards are completely different. Do not use this page for 2022 or newer Tundra models.
Can I use 5W-30 instead of 0W-20? Toyota does not recommend it. The VVT-i system is calibrated for 0W-20. In climates that never drop below freezing, 5W-30 will function without immediate harm, but 0W-20 is the correct specification.
How often should I change the oil? Every 5000 miles for normal driving. Use 3000-mile intervals when towing near maximum capacity or off-roading.
Need these specs on your phone? Download OilFinderPro app for offline access and oil change reminders.
Last verified: 2026-04-26 | Source: 2021 Toyota Tundra Owner’s Manual (OM34469U)