2024+ Tacoma - Fuel Tank Capacity & Gas Type

[4gtacoadmin]

This thread consolidates fuel specifications from pages 615 and 623 of your owner's manual into a quick-reference guide for fuel capacity, fuel type requirements, octane rating, and gasoline quality recommendations.

Tacoma Fuel Tank: Capacity, Gas Type & Octane Specs​

Fuel Tank Capacity​

18.2 Gallons (69.0 Liters, 15.2 Imperial Gallons)

Source: Toyota Owner's Manual, Page 615

Fuel Type and Octane Requirement​

Fuel Type: Unleaded gasoline ONLY

Minimum Octane Rating: 87 (Research Octane Number 91) or higher

Use of unleaded gasoline with an octane rating lower than 87 may result in engine knocking. Persistent knocking can lead to engine damage.

Source: Toyota Owner's Manual, Pages 615 and 623

Critical Ethanol Content Limitation​

MAXIMUM ETHANOL CONTENT: 15% (E15)

DO NOT use:

• E85 (85% ethanol)
• E50 (50% ethanol)
• E30 (30% ethanol)
• Any flex-fuel or gasoline containing more than 15% ethanol

Use only gasoline containing up to 15% ethanol. DO NOT use any flex-fuel or gasoline that could contain more than 15% ethanol, including from any pump labeled E30 (30% ethanol), E50 (50% ethanol), E85 (85% ethanol) (which are only some examples of fuel containing more than 15% ethanol).

Source: Toyota Owner's Manual, Page 623

Gasoline Quality Recommendations​

Toyota Strongly Recommends: Top Tier Detergent Gasoline

Top Tier gasoline contains enhanced detergent packages that protect your fuel system and maintain fuel injector cleanliness. This is especially important for modern direct-injection engines like the T24A-FTS turbo in your Tacoma.

While all gasoline sold in the U.S.A. contains minimum detergent additives per EPA regulations, Top Tier brands provide additional protection. For a list of Top Tier marketers, visit www.toptiergas.com

Acceptable Alternative: Low-emissions reformulated gasoline (containing ethanol up to 15% or other oxygenates) is acceptable and recommended for reduced vehicle emissions.

Source: Toyota Owner's Manual, Page 623

Fuel Standards Reference​

At minimum, your gasoline should meet ASTM D4814 specifications in the United States.

Why These Specifications Matter​

The T24A-FTS Turbo Engine​

Your Tacoma uses a turbocharged direct-injection 4-cylinder engine. This powertrain has specific fuel requirements:

Octane 87 Minimum: The turbocharger adds boost pressure to the intake manifold. Low-octane fuel (86 or lower) is more susceptible to detonation under boost conditions, which can cause catastrophic piston damage and engine failure.

Unleaded Gasoline Only: Modern catalytic converters and fuel injection systems are engineered for unleaded fuel. Leaded gasoline destroys catalytic converters and deposits harmful residue on fuel injectors.

Ethanol Content Limit (E15 Maximum): Your Tacoma's fuel system, including pump seals, gaskets, and precision fuel injectors, is tested and rated for up to 15% ethanol. Higher blends (E85, E50, E30) can:

• Corrode rubber seals and plastic fuel system components
• Cause fuel pump cavitation and catastrophic failure ($500-1,200 repair)
• Damage fuel injectors through chemical incompatibility
• Significantly reduce fuel efficiency (E85 requires 25-30% more volume)
• Void your vehicle warranty

Top Tier Detergent Gasoline: Direct-injection engines are particularly sensitive to fuel system deposits. Over time, low-quality gasoline allows deposit buildup on fuel injectors, reducing spray pattern precision and causing rough idle, hesitation, and loss of power.

Common Fuel Mistakes (And Why They Cost Money)​

Mistake #1: Using E85 to Save Money
Reality: E85 fuel provides 25-30% fewer miles per gallon than regular unleaded. You're not saving money - you're spending more per mile and risking fuel pump failure.

Mistake #2: Using 86-Octane to Save Money
Reality: One tank of low-octane fuel in a boosted turbo engine during hard acceleration can cause detonation damage requiring $2,500-3,500 in engine repairs.

Mistake #3: Using Whatever Brand Is Cheapest
Reality: Saving $0.05/gallon today costs $400-600 in fuel injector cleaning next year. Stick with Top Tier brands (Shell, Chevron, Costco, etc.).

Quick Reference Checklist​

Before refueling, verify:

1. Fuel pump nozzle shows "Unleaded" - REQUIRED
2. Octane rating is 87 or higher (check pump label) - REQUIRED
3. Pump shows "E10" or "E15" blend, NOT "E30," "E50," or "E85" - REQUIRED
4. If available, choose Top Tier brand (Shell, Chevron, Costco, Texaco, Sunoco, etc.) - RECOMMENDED
5. Avoid pump labeled E85, E30, or high-ethanol blend - CRITICAL

Manual Pages Reference​

This thread summarizes fuel specifications from:

• Page 615 - Vehicle Specifications (fuel tank capacity, fuel type, octane rating)
• Page 623 - Gasoline Quality (fuel recommendations, ethanol limits, standards)

Refer to your complete owner's manual for additional information on fuel system maintenance, fuel pump locations, and related systems.

Sources​

Primary Source: 2024+ Toyota Tacoma (4th Generation) Owner's Manual, Pages 615 and 623

Information Includes:

• Official Toyota fuel specifications
• OEM fuel type and quality requirements
• Critical safety warnings about fuel compatibility
• Manufacturer-approved alternatives and recommendations

All specifications are current as of the 2024+ Tacoma model year (4th Generation). For updates or clarifications, consult your full owner's manual or contact a Toyota dealer.

Thread Information​

Source: 2024+ Toyota Tacoma (4th Generation) Owner's Manual
Pages: 615, 623
Topic Classification: Specifications & Reference Data
Last Updated: 2025-02-11

This thread is ready for posting on the Tacoma3G forum.


Disclaimer:
This guide is derived from the official 2024+ Toyota Tacoma Owner's Manual (OM04041U) with supplementary information from the owner community and authoritative sources. Always follow your official owner's manual for warranty compliance. This is a reference guide only.