Complete Oil Specifications
Your 2020 Honda Fit with the 1.5L L15B4 engine requires 0W-20 full synthetic oil meeting API SN Plus (or SP) and ILSAC GF-6A standards. Honda’s Maintenance Minder system manages the change interval — follow its alerts.
Quick Reference
| Specification | Value |
|---|---|
| Viscosity | 0W-20 |
| API Rating | API SN Plus |
| ILSAC Rating | GF-6A |
| Capacity (with filter) | 3.2 quarts |
| Oil Filter | Honda 15400-PLM-A02 |
| Normal Interval | 7500 miles |
Why 0W-20 is Critical for This Engine
The L15B4 i-VTEC uses Honda’s Variable Valve Timing and Lift Electronic Control (VTEC) system, which relies on oil pressure to engage the high-lift cam profile. The 0W-20 viscosity ensures the VTEC oil pressure switch receives consistent signal pressure across temperature ranges — thicker oil can delay VTEC engagement and cause a momentary flat spot in the power curve. At just 3.2 quarts, this engine also benefits significantly from the lower friction of 0W-20 on every cold start.
Using incorrect oil will:
- ❌ Delay or prevent VTEC engagement, reducing power in the upper RPM range
- ❌ Reduce fuel economy — 0W-20’s friction reduction is built into the Fit’s EPA rating
- ❌ Increase wear in the VTEC solenoid screen from incompatible additive chemistry
Honda-Approved Oil Brands
-
✅ Honda Genuine Motor Oil 0W-20
-
✅ Mobil 1 Advanced Full Synthetic 0W-20
-
✅ Pennzoil 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
Honda Genuine Oil is manufactured by Idemitsu and is excellent value. Any oil with the API SN Plus or SP certification and GF-6A starburst is approved.
Severe Service Check
You need the 3750-mile interval if you:
- Drive mostly short trips under 5 miles (very common for Fit owners in urban areas)
- Idle frequently in traffic
- Drive in very cold climates with frequent short trips
- Experience repeated cold starts with minimal warm-up time
Installation Details
Drain Plug Torque: 29 ft-lbs
The Honda drain plug uses a crush washer — replace it every change. Honda recommends an aluminum washer (part 90471-PH1-000).
OEM Filter: Honda 15400-PLM-A02
Aftermarket Filters:
-
Wix 51394
-
Mobil 1 M1-110
-
K&N HP-1004
Pro Tip: With only 3.2 quarts, overfilling is easy. After the change, run the engine for 30 seconds, shut off, wait 5 minutes, and check the dipstick carefully — stay between the MIN and MAX marks.
FAQs
What oil does a 2020 Honda Fit 1.5L take?
0W-20 full synthetic oil meeting API SN Plus or SP and ILSAC GF-6A.
How many quarts does it need?
3.2 quarts with a new filter — one of the smallest capacities of any current Honda engine.
Can I use 5W-20 instead of 0W-20?
Honda does not list 5W-20 as an approved alternative for the L15B4. Stick to 0W-20 to protect VTEC function and maintain fuel economy.
Does the Fit’s Maintenance Minder tell me when to change oil?
Yes. Honda’s Maintenance Minder monitors driving conditions and calculates oil life. When it reaches 15%, service is due. The 7,500-mile interval is a reference maximum — urban short-trip driving will trigger earlier alerts.
How often should I change the oil?
Follow the Maintenance Minder; approximately every 7500 miles for normal driving, 3750 miles for mostly short-trip urban driving.
Need these specs on your phone? Download OilFinderPro app for offline access and oil change reminders.
Last verified: 2026-04-17 | Source: 2020 Honda Fit Owner’s Manual