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Amber full-synthetic 5W-30 motor oil in a 5-gallon box

VALVOLINE

VALVOLINE 881055 Synpower 5W-30 5 gal motor oil

SKU CH-ATYC-59CE6

Full-synthetic 5W-30 engine oil protects automotive engines across a -24 °F to 390 °F range

  • Full synthetic protects engines across extreme temperatures
  • Viscosity index 171 maintains film strength from -24 °F to 390 °F
  • Pour point -36 °C ensures cold-start flow in harsh winters
  • Meets API and SAE standards for cars and light trucks
  • 5-gallon box supplies multiple oil changes for fleet or DIY use

VALVOLINE Synpower 5W-30 5 gal motor oil

VALVOLINE Synpower 5W-30 is a full synthetic engine oil supplied in a 5 gallon box. It is formulated for automotive engines in cars and light trucks. The product meets API and SAE standards for passenger vehicle lubrication.

Cold flow to 390 degrees F operating range

The oil carries a viscosity index of 171 with a pour point of -36 degrees C and a flash point of 390 degrees F. Kinematic viscosity measures 70 at 40 degrees C and 12 at 100 degrees C. The 5W-30 SAE grade supports cold starts down to -24 degrees F while maintaining film strength at high temperature.

Sustained high temperature stability

The high viscosity index and elevated flash point indicate resistance to thinning during extended operation. Full synthetic base stocks reduce volatility and deposit formation over long drain intervals. The formulation targets consistent viscosity retention under continuous thermal stress in automotive engines.

Highlights

  • Full synthetic protects engines across extreme temperatures
  • Viscosity index 171 maintains film strength from -24 °F to 390 °F
  • Pour point -36 °C ensures cold-start flow in harsh winters
  • Meets API and SAE standards for cars and light trucks
  • 5-gallon box supplies multiple oil changes for fleet or DIY use

Specifications

BrandVALVOLINE

Questions about this item

How do I pour the 5-gallon box of Synpower 5W-30 into my engine without spilling, and what step do people skip?

Use a clean funnel and flexible spout on the box tap; the step most skip is wiping the tap and funnel first so dirt does not enter the engine.

When will this full-synthetic 5W-30 need changing in a typical car or light truck?

Follow the vehicle maker's interval; the oil's viscosity index of 171 and pour point of -36 °C support extended drains but do not override the manual.

At what temperature does the 5W-30 Synpower start to break down under sustained high-load running?

The flash point is 390 °F; sustained oil temperatures approaching that level signal the limit of safe operation.

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