Honda Ridgeline RTL-T Coolant Type
Factory manual coolant type & capacity for the Honda Ridgeline RTL-T. Exact capacities and specs extracted from the LEMON service manual archive.
Last updated: 2026-11-09 • Reading time: 8 min • By AllOEMManuals Editorial Team
Quick Answer
2017-2019 Honda Ridgeline RTL-T coolant: 1.88 GALS. (7.11 L) — HONDA Long-Life Antifreeze/Coolant Type 2 Note: This coolant is pre-mixed with 50/50 antifreeze and water. Never add straight antifreeze or plain water. If Honda antifreeze/coolant is not available, you may use another major-brand non-silicate coolant as a temporary replacement. Make sure it is a high-quality coolant recommended for aluminum engines..
| Generation | Years | Top spec |
|---|---|---|
| 2017-2019 | 2017-2019 | 1.88 GALS. (7.11 L) — HONDA Long-Life Antifreeze/Coolant Type 2 Note: This coolant is pre-mixed with 50/50 antifreeze and water. Never add straight antifreeze or plain water. If Honda antifreeze/coolant is not available, you may use another major-brand non-silicate coolant as a temporary replacement. Make sure it is a high-quality coolant recommended for aluminum engines. |
This vehicle's factory manual
Honda Ridgeline RTL-T: choose your year, then confirm the engine, trim, or drivetrain to open the available repair and diagnosis sections.
Honda Ridgeline RTL-T maintenance schedule
Check coolant type information for your Honda Ridgeline RTL-T
2017-2019 Honda Ridgeline RTL-T coolant: 1.88 GALS. (7.11 L) — HONDA Long-Life Antifreeze/Coolant Type 2 Note: This coolant is pre-mixed with 50/50 antifreeze and water. Never add straight antifreeze or plain water. If Honda antifreeze/coolant is not available, you may use another major-brand non-silicate coolant as a temporary replacement. Make sure it is a high-quality coolant recommended for aluminum engines..
Fluid type and capacity can change by engine, drivetrain, and transmission. Verify the exact branch before filling anything. Once the spec is confirmed, use the supplies and purchase links below to build the full one-trip shopping list before you start the repair.
Find Your Vehicle
Choose your year, model and configuration before using a specification or ordering parts. The example source may describe a different vehicle or trim.
2017-2019
- →This coolant is pre-mixed with 50/50 antifreeze and water. Never add straight antifreeze or plain water. If Honda antifreeze/coolant is not available, you may use another major-brand non-silicate coolant as a temporary replacement. Make sure it is a high-quality coolant recommended for aluminum engines.
Parts and supplies
These links search for related products. Check your year, engine, specification, and fitment with the seller before ordering.
Honda Ridgeline RTL-T coolant
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Coolant Service — Manual's Parts List
Flush or top-off — here is exactly what you need.
- 1Engine CoolantShop →
1.88 GALS. (7.11 L) — HONDA Lo — verify concentrate vs pre-mixed
- 2Distilled WaterShop →
If using concentrate — never use tap water
- 3Spill-Free FunnelShop →
Bleeds air from the heater core automatically
- 4Hose Clamp PliersShop →
Spring clamps are a pain without these
- 5Shop RagsShop →
Coolant is slippery — clean spills immediately
Get everything at once
Search results vary; confirm each item and its fitment before buying.
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One-Trip Shopping List
Recommended supplies and tools for this job, grouped so you can buy everything before the repair starts.
Engine Coolant / Antifreeze
Match the color/spec (e.g. OAT, HOAT) to your car.
Spill-Free Funnel
The best way to bleed air from the cooling system.
Coolant Tester
Check the freeze and boil protection level.
Hose Clamp Pliers
Helps move spring clamps without mangling hoses.
Shop Towels
Cleanup gear for coolant drips and burps.
Project Essentials
Basic tool sets, gloves, and cleaning supplies for your Honda Ridgeline RTL-T so the job is ready when the parts arrive.
Frequently Asked Questions
- Where is this data from?
- Extracted directly from the LEMON factory service manual archive. Sources are cited per generation.
- What coolant type does a Honda Ridgeline RTL-T use?
- 2017-2019 Honda Ridgeline RTL-T coolant: 1.88 GALS. (7.11 L) — HONDA Long-Life Antifreeze/Coolant Type 2 Note: This coolant is pre-mixed with 50/50 antifreeze and water. Never add straight antifreeze or plain water. If Honda antifreeze/coolant is not available, you may use another major-brand non-silicate coolant as a temporary replacement. Make sure it is a high-quality coolant recommended for aluminum engines..
- Can I use universal coolant in a Honda Ridgeline RTL-T?
- Factory manuals specify exact coolant chemistry for the Honda Ridgeline RTL-T. Using the wrong coolant type can cause corrosion, overheating, or gasket damage. Always match the OEM specification exactly — do not mix incompatible coolant types.
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Author & Review
Published by AllOEMManuals, founded by Lyndon Bedford, an automotive technician with 20 years of experience. He owned and operated a mechanic shop in Hurst, Texas from 2014 to 2022 and continues hands-on repair work.
Content may combine manual references, general repair templates, and AI-assisted drafting. Confirm the source, vehicle configuration, and applicability before working. Report corrections through our contact page.
Last updated: 2026-11-09