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Silkolene Pro 4 SX Engine Oil

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Silkolene Pro 4 SX Motor Oil

Silkolene Pro 4 SX Motor Oil is a easter based full synthetic 4-stroke offroad racing engine oil. 


  • Advanced surface chemistry provides vital protection to pistons, cams and bearings even during cold start, prior to lubricant flowing
  • Excellent thermal and shear stability give stay-in-grade performance
  • High film strength reduces friction and transmission wear
  • Improves clutch "feel" and reduces wear even with aluminum plates
  • Meets or exceeds API-SF and SG standards
  • Motorcycle 4T JASO-MA certified
Product Style RevZilla Item # Manufacturer Product # Availability
10W40 / 1 Liter 166690 80069400478 Out of Stock
15W50 / 1 Liter 166691 80069500478 In Stock: Ships within 24 hours


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Silkolene Pro 4 SX Engine Oil 4 5 1 1
Liquid gold This was the oil recommended to me by lots of people on thumper talk to use in my DRZ400. No Question, this is the best oil you can put in a DRZ400. Smoother shifting, quieter engine, smells good too :) October 6, 2008
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Silkolene Pro 4 SX Engine Oil
Already Asked: 1 Question, 2 Answers
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RevZilla Store asked: Why did you choose this?
Lucas W: The best oil for a DRZ. Also can be used all season. Mar 9, 2015
Robert O: Have used this oil on my last 3 oil changes and don't plan on ever using anything else for my DRZ400S

Made shifting noticeably smoother.

Don't freak out. It is suppose to be red.
Mar 14, 2014