Red Line 5W30 Motor Oil - Gallon - 15305 - RED15305

The Red Line 5W30 Motor Oil (Part #15305) is a fully synthetic, PAO/ester-based engine oil engineered for modern road cars, light trucks, performance vehicles, and marine applications. Sold in a convenient one-gallon jug, this is Red Line's most popular viscosity — and for good reason: it's factory-specified for most late-model BMW, General Motors, and Nissan vehicles, making it one of the most broadly applicable premium synthetic oils on the market. Whether you're doing a routine oil change or maintaining a high-performance engine, Red Line 5W30 delivers the kind of protection that conventional and lesser synthetic oils simply can't match.

Key Features & Benefits

• True PAO/Ester Synthetic Formula: Red Line starts with a polyalphaolefin (PAO) and polyol ester base stock — not re-refined conventional oil. This is a true synthetic that provides superior thermal stability and oxidation resistance compared to petroleum-based or lower-grade synthetic oils.
• Thicker Oil Film at Operating Temperature: Despite its 5W30 cold-start rating, Red Line's formula provides a thicker oil film at operating temperature than a petroleum 10W40, meaning better metal-to-metal separation when your engine is working hardest.
• High Natural Detergency: The advanced additive package keeps engine internals clean and supports extended drain intervals, reducing sludge buildup and keeping passages clear.
• Excellent Wear Protection from Cold Start: The ester chemistry provides immediate lubrication on startup — one of the most critical moments for engine wear — through sustained high-temperature operation.
• Enhanced Fuel Economy & Ring Seal: Improved ring seal contributes to better combustion efficiency, which can translate to measurable gains in fuel economy and power output over time.
• Low Evaporation Rate: Lower volatility means less oil consumption between changes, keeping your oil level stable and protecting catalytic converters from oil contamination.
• Fully Compatible with Conventional & Other Synthetics: You can mix Red Line 5W30 with conventional oil or other synthetic oils without issue — ideal for top-offs or transitioning from another brand.
• Enhanced ZDDP Levels: Red Line's proprietary additive package includes elevated zinc/phosphorus (ZDDP) levels for additional wear protection, especially beneficial for flat-tappet camshafts and high-load engines.

Specifications

• SAE Viscosity Grade: 5W30
• Base Stock: PAO (Polyalphaolefin) / Ester (Polyol Ester)
• Container Size: 1 Gallon (128 fl oz)
• Part Number: 15305
• API Service Classifications: SN / SM / SL / SJ / SH / SG / CF
• ACEA Classifications: A3 / B3 / B4
• OEM Approvals & Specs Met: GM dexos1® (GM-LL-A-025, GM6094M, GM4718M), BMW LL-01, Ford WSS-M2C946-A, VW/Audi 502.00 / 503.01 / 505.01-99
• Compatible Engine Types: Gasoline, diesel, motorcycle, and marine engines

Fitment

Red Line 5W30 (15305) is a universal motor oil — it is not vehicle-specific, but rather viscosity- and specification-specific. It is the factory-recommended viscosity and meets OEM specifications for:

• BMW: Most late-model vehicles requiring BMW LL-01 specification
• General Motors: Most late-model vehicles requiring GM dexos1® (GM-LL-A-025, GM6094M, GM4718M)
• Nissan: Most late-model vehicles calling for 5W30 viscosity
• Volkswagen / Audi: Models requiring VW 502.00, 503.01, or 505.01-99 specifications
• Ford: Models requiring Ford WSS-M2C946-A specification
• Performance & Marine: Suitable for high-performance gasoline engines and marine applications

Always verify your vehicle owner's manual for the required viscosity grade and OEM specification before purchasing. If your vehicle calls for a different viscosity (such as 5W20, 0W20, or 0W40), a different Red Line product would be appropriate.

What's in the Box

• 1 x Red Line 5W30 Fully Synthetic Motor Oil — 1 Gallon Jug (Part #15305)

Why Buy from ThreePiece.us

• Free Shipping on Every Order: No minimums, no surprises — your Red Line oil ships free.
• Affirm Financing Available: Spread your purchase over time with flexible financing through Affirm at checkout.
• Expert Fitment Help: Not sure if 5W30 is right for your specific vehicle or application? Our team is here to help you verify the correct viscosity and specification before you buy.
• Performance-Focused Inventory: We stock Red Line products because we understand what serious enthusiasts and everyday drivers need — quality fluids that actually protect your investment.

Frequently Asked Questions

Q: Is Red Line 5W30 (15305) compatible with my BMW?
A: If your BMW specifies BMW LL-01 oil, then yes — Red Line 5W30 meets that specification. It's listed as one of the most popular oils for late-model BMW vehicles. Always cross-reference your owner's manual to confirm LL-01 is the required approval for your specific model and year.

Q: Can I use this oil in a GM vehicle that requires dexos1®?
A: Yes. Red Line 5W30 is recommended for GM dexos1® (covering GM-LL-A-025, GM6094M, and GM4718M specifications), making it a compatible choice for most late-model General Motors vehicles that call for 5W30 viscosity with dexos1® approval.

Q: Can I mix Red Line 5W30 with my current conventional or synthetic oil?
A: Yes. Red Line 5W30 is fully compatible with both conventional and synthetic motor oils, so it's safe to top off an existing fill or transition from another brand. For maximum performance benefit, a full drain and refill with Red Line is recommended.

Q: How much oil does one gallon cover?
A: One gallon contains 128 fluid ounces, which is equivalent to approximately 3.78 liters or just over four quarts. Most passenger car and light truck engines require between 4 and 6 quarts per oil change, so one gallon jug may cover a full oil change for smaller-displacement engines, or serve as a partial fill for larger ones. Check your vehicle's oil capacity in the owner's manual.