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USD 10.03
Part #: RL21404

Red Line 21404 Synthetic 15w-40 Engine Oil

For All Diesel Engines - 1 Quart Bottle
Part #: RL21404
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For superior high temperature stability and oxidation resistance, choose Red Line 21404 Synthetic 15w-40 Engine Oil for your next oil change. This full-synthetic ester formula can be used in a passenger cars, light trucks, performance vehicles, and marine applications to provide excellent wear protection. A blend of polyol ester base stocks avoid unnecessary additives that hinder lubricity while the high detergency level allows extended drain intervals. Compatible with other synthetic engine oils.

  • 1 Quart Bottle
  • 15w-40 Full Synthetic
  • Blended Polyol Ester Base
  • Reduces Friction & Improves Ring Seal
Meets or Exceeds: API SN, SM, SL, CK-4, CJ-4, CI-4+, CH-4, ACEA A3, B3, E2, E5, E7, E9


  • MFG. Number 21404
  • Manufacturer Name Red Line
  • Shipping Weight 3.00 lb.
  • Shipping Length 13 in.
  • Shipping Width 17 in.
  • Shipping Height 10 in.
  • Fuel Type Diesel
  • UPC 083522214049
  • Prop 65 WARNING: Cancer & Reproductive Harm -


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XDP continues to closely monitor the COVID-19 (Coronavirus) outbreak. As an integral part of the automotive supply chain, at this point all call centers and distribution centers remain fully operational to ensure we keep vital service components flowing to vehicles used in transport of goods and emergency response. To ensure the health of our employees, families, and customers, we have made the following procedural changes:

  • UPDATE: Effective 6/1 Customer Service resumes normal business hours of M-F 8:30 – 9:00pm EST.
  • Effective 3/18 we have decided to temporarily close both of our retail stores in NJ and NV.
  • Our technical sales team remains available Mon-Fri 8:30am-9pm and Saturday 10:30am-7pm EST.
  • All employees have been encouraged to follow the CDC's recommendations at home and in the workplace.
The circumstances of this virus are fast moving, as such, we will continue to update you with any further operational adjustments as needed. As always, we value your business and appreciate your patience as we manage this situation together.