Red Line 20W50 is a fully synthetic, ester-based high-performance motor oil with a high-ZDDP anti-wear package and about 25% more viscosity than petroleum 20W-50s, for wider bearing clearances and racing engines that also see occasional street use. Popular in turbocharged applications; meets API SN/SM/SL and ACEA A3. Not recommended below about -20°C (-5°F). Case of twelve 1-quart bottles.
Specifications
| Viscosity (SAE) | 20W-50 |
| Type | Fully synthetic, ester-based (high-ZDDP) |
| Approvals | API SN/SM/SL; ACEA A3 |
| For | Wide bearing clearances, racing + street, turbo (not below -20°C) |
| Size | 1 Quart (12 Pack) |
| Part Number | 12504 |
Shipping
- In-stock orders placed before 3 PM EST ship the same day — everything else ships within 24 hours.
- Standard, expedited, and overnight options at checkout.
- Oversized items ship by freight and take longer.
- Backordered items ship as soon as stock lands — contact us for lead times.
- International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.
Returns
- 30-day returns on new, uninstalled items in original packaging with all hardware.
- Standard returns: 8% restocking fee, buyer pays return shipping. Both waived if the item is defective or we made the error.
- Installed or used parts can’t be returned — confirm fitment before you install.
- Special orders and custom items are final sale.
- Email us for return authorization before shipping anything back.
Full details: Shipping Policy · Refund Policy
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