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What type of oil do you use for a Chevy Trailblazer 2003?

The recommended oil type for a 2003 Chevy Trailblazer depends on the engine it has. There were several engine options available that year. To be certain, check your owner's manual. It will specify the exact type and weight of oil recommended by the manufacturer.

However, generally speaking, a 2003 Chevy Trailblazer will likely use a conventional or synthetic blend motor oil meeting the following specifications:

* SAE Viscosity: This will be something like 5W-30 or 10W-30. Again, check your owner's manual for the specific recommendation. The viscosity grade is crucial for proper engine lubrication across different temperatures.

* API Certification: Look for an API certification on the oil bottle, such as "SN" or a newer specification. This indicates the oil meets certain performance standards.

Don't rely solely on online information. Always consult your owner's manual for the definitive answer on the correct oil type for your specific 2003 Chevy Trailblazer.