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Amber liquid in a clear one-quart plastic bottle with a red and green Castrol label

Castrol

Castrol 06145 10W-30 Motor Oil 1 qt

SKU CH-BCDV-CXQRT

Conventional 10W-30 engine oil in a 1 qt bottle meets API SN and ILSAC GF-5 standards for automotive engines

  • Protects engines across temperatures with 10W-30 viscosity
  • Meets API SN, SM, SL, SJ standards for broad compatibility
  • Low pour point of -36 °C aids cold starts
  • High viscosity index of 142 maintains film strength
  • Conventional petroleum base oil in a 1 qt bottle

Conventional 10W-30 engine oil

Castrol 06145 is a petroleum-based lubricant formulated for automotive engines. The SAE 10W-30 grade flows at low temperature and maintains film strength at operating heat. It meets API SN, SM, SL and SJ categories along with ILSAC GF-5, GF-4 and GF-3 standards. The product is supplied new in a one-quart bottle.

Vehicles needing API SN conventional oil

This oil suits petrol engines that specify a 10W-30 viscosity and accept conventional base stocks. It also satisfies the GM 6094M requirement found in certain General Motors service bulletins. Engines requiring synthetic-only formulations, lower viscosity grades such as 0W-20, or diesel-specific additive packages should use a different product.

Viscosity index 142

The viscosity index of 142 indicates how consistently the oil resists thinning across temperature changes. Kinematic viscosity measures 75.1 at 40 degrees C and 11.31 at 100 degrees C. Pour point reaches minus 36 degrees C while flash point sits at 200 degrees C. These figures define the oil’s temperature performance envelope.

How it compares

Measured against everything we stock in Industrial Motors & Machine Parts, at today’s prices. Recalculated every night.

Price $6.99
Cheaper than about 93% of the 397 comparable items (median $91.99).

Specifications

Product
Brand nameCASTROL

Questions about this item

How often should I change the 10W-30 oil based on the viscosity index of 142?

Follow the vehicle manufacturer's service interval; the viscosity index of 142 indicates stable viscosity across temperatures but does not set a specific change schedule.

Will the pour point of -36°C limit cold starts in very low temperatures?

The pour point of -36°C means the oil remains fluid well below freezing, so cold-start protection is maintained in harsh winter conditions.

Does the flash point of 200°C affect engine heat during all-day operation?

A flash point of 200°C shows high thermal stability; the oil resists vaporisation and maintains protection during extended high-temperature running.

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