Red Line Engine Oils

Red Line 40WT Race Oil (15W40) Quart View larger

Red Line 40WT Race Oil (15W40) Quart



For Use In Stock Car Racing, Road Racing, And Sprint Cars. Red Line Race 40wt race oil is popular for Dirt Late Model and NASCAR Spec engines for Camping World East and West Series.

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Red Line 40WT Race Oil (15W40) Quart

Red Line® engine and transmission lubricants have long been the choice of racers and knowledgeable engine builders. 

The thermal stability, film strength and reduced parasitic drag found in Red Line® engine oil all contribute to lower operating temperatures, increased engine life and more power. Red Lines’® racing heritage is reflected in all of their’ll see more Red Line® products at the track than any other lubricant manufacturer for all of these reasons. 

About Red Line® Motor Oil for Racing

  • Reformulated for improved frictional properties
  • Special detergents for improved lubricity and less detonation
  • Polyol ester base stocks provide more stability and film strength when exposed to excess fuel dilution
  • Each of these products has no less than 2200ppm of zinc and phosphorus for antiwear
  • Each race oil product is a multi-grade, offering 2-4% more power than oil of a similar viscosity - 20WT is a 5W20, 30WT is a 10W30, 40WT is a 15W40, 50WT is a 15W50
  • Improved protection at startup, lower oil temp, cleanliness
  • Remember to change these oils more frequently than regular motor oils

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