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Schaeffer SynShield OTR Plus Full Synthetic Diesel Engine Oil 5W-40, 1-Gallon

Schaeffer's ★ 4.0/5 · ItemOracle Score Mid-Range

$60 USD
Price subject to change
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Schaeffer Manufacturing Co. 9000CK4-006S SynShield OTR Plus Full Synthetic Diesel Engine Oil 5W-40, 1-Gallon Bottle

Full synthetic diesel engine oil with strong heat tolerance and soot-dispersing capability. Improves cold start and maintains filter-clean performance. Customers note reduced engine noise and solid protection, with mixed views on value for money

Highlights

  • Full synthetic diesel oil 5W-40
  • Strong soot-dispersing capability
  • Excellent cold-start characteristics

Pros

  • Maintains fuel economy without sacrificing durability
  • Superior cold weather startability
  • Withstands higher heat range than conventional oils
  • Keep-clean performance and soot busting
  • Deposit-dispersing capability

Cons

  • Mixed opinions on value for money
  • Mixed experiences with acceleration

Best For

  • diesel engines requiring synthetic oil
  • heavy-duty applications with high heat
  • cold climate starts
  • engine protection and longevity
  • soot management in diesel systems
  • noise reduction in diesel engines

Features

  • Supports fuel economy without compromising engine durability
  • Improved cold weather startability and operating performance
  • Withstands higher heat range than conventional oils
  • Maintains keep-clean performance with soot busting capability
  • Deposition and sludge dispersion capability for cleaner internals

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