Red Line 5W30 Motor Oil - Quart - 15304 - RED15304

The Red Line 5W30 Synthetic Motor Oil (Part #15304) is a fully synthetic, high-performance engine oil built for modern passenger cars, light trucks, and performance vehicles. Formulated on a PAO/Ester base — the hallmark of a true synthetic — and reinforced with Red Line's proprietary additive package featuring enhanced ZDDP levels, this quart of 5W30 is engineered to deliver superior wear protection, cleanliness, and extended drain intervals across a broad range of operating conditions. Whether you're maintaining a daily driver or pushing a track-day machine, this is one of the most respected motor oils in the enthusiast community.

Key Features & Benefits

• True PAO/Ester Synthetic Base: Red Line uses polyalphaolefin (PAO) and ester base stocks — the most thermally stable synthetic components available — providing a genuine full-synthetic oil that outperforms conventional and Group III "synthetic" alternatives in film strength and heat resistance.
• Enhanced ZDDP Additive Package: Higher zinc and phosphorus (ZDDP) levels compared to many passenger-car motor oils help protect flat-tappet camshafts, high-load bearings, and other wear-critical components — a key reason performance builders and enthusiasts specifically seek out Red Line.
• Thicker Oil Film at Operating Temperature: Red Line's 5W30 provides a thicker oil film at operating temperature than a conventional petroleum 10W40, offering added protection under high heat and sustained load without sacrificing cold-start flow.
• Designed for Superior Cleanliness: The formulation is engineered to resist sludge and deposit formation, keeping internals cleaner over the life of the oil and supporting longer, more confident drain intervals.
• Broad OEM Compatibility: Meets or exceeds specifications for API SN/SM/SL/SJ/SH/SG/CF, ACEA A3/B3/B4, GM dexos1® (GM-LL-A-025, GM6094M, GM4718M), BMW LL-01, VW/Audi 502.00/503.01/505.01-99, and Ford WSS-M2C946-A — covering an exceptionally wide range of manufacturer requirements in a single product.
• Most Popular Viscosity: 5W30 is the most commonly specified viscosity for late-model road cars, making this Red Line product a go-to choice for BMW, General Motors, Nissan, Ford, and VW/Audi owners who want premium protection without stepping outside OEM viscosity requirements.
• Suitable for Passenger Cars, Light Trucks & Marine Applications: Versatile enough to cover a wide range of applications including road cars, light-duty trucks, performance builds, and marine engines.

Specifications

• Part Number: 15304
• Brand: Red Line Synthetic Oil
• Viscosity Grade: SAE 5W30
• Oil Type: Fully Synthetic (PAO/Ester Base)
• Container Size: 1 Quart
• API Rating: SN/SM/SL/SJ/SH/SG/CF
• ACEA Rating: A3/B3/B4
• OEM Approvals / Compatibility: GM dexos1® (GM-LL-A-025, GM6094M, GM4718M), BMW LL-01, VW/Audi 502.00/503.01/505.01-99, Ford WSS-M2C946-A

Fitment

Red Line 5W30 (15304) is a universal motor oil product — fitment is determined by your vehicle's OEM-specified viscosity grade and oil specification, not by year/make/model directly. It is noted by Red Line as the most popular oil for modern road cars and light trucks, and is specifically called out as appropriate for most late-model BMW, General Motors, and Nissan vehicles. It also meets specifications required by VW/Audi, Ford, and other manufacturers listed above.

Always cross-reference your owner's manual or OEM oil specification before purchasing. If your vehicle requires a different viscosity (e.g., 0W20, 5W40, 10W30), Red Line offers 16 different viscosity grades — contact us and we can help you find the right one.

What's in the Box

• 1 x Red Line 5W30 Fully Synthetic Motor Oil — 1 Quart (Part #15304)

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• Trusted Brands, Real Parts: We carry Red Line's full lineup of synthetic lubricants and fluids, so you can build out your service needs in one place.

Frequently Asked Questions

Q: Is Red Line 5W30 (15304) a true full synthetic oil?
A: Yes. Red Line formulates this motor oil using a PAO (polyalphaolefin) and Ester base, which qualifies it as a true synthetic — not a conventional or re-refined Group III product. This base stock provides excellent thermal stability and film strength.

Q: What OEM specifications does Red Line 5W30 meet?
A: Red Line 5W30 is recommended for API SN/SM/SL/SJ/SH/SG/CF and ACEA A3/B3/B4. It is also compatible with GM dexos1® (GM-LL-A-025, GM6094M, GM4718M), BMW LL-01, VW/Audi 502.00/503.01/505.01-99, and Ford WSS-M2C946-A. If your vehicle calls for one of these specs, this oil is a strong choice.

Q: How much oil do I need for a full oil change?
A: This listing covers a single 1-quart container. Most passenger car engines require 4–6 quarts for a complete oil change. Check your owner's manual for your engine's specific capacity and order accordingly. Red Line 5W30 is also available in a gallon size if you prefer a larger quantity.

Q: Is Red Line 5W30 suitable for high-performance or modified engines?
A: Red Line motor oils are widely used in performance applications. The enhanced ZDDP levels and PAO/Ester base make them a popular choice among enthusiasts and racers who want more wear protection than standard passenger-car oils provide. Red Line's own motorsports heritage reflects the brand's commitment to protection under demanding conditions.