Motor oil for a 1999 Chevy Malibu?

The recommended motor oil for a 1999 Chevy Malibu depends on the engine it has. There were several engine options available for that year. To be certain, check your owner's manual. It will specify the correct viscosity (like 5W-30 or 10W-30) and the type of oil (conventional, synthetic blend, or full synthetic).

However, if you don't have the owner's manual, a good starting point is to look for:

* 5W-30: This is a common viscosity for many 1999 vehicles and a likely candidate for your Malibu.

* API certification: Look for an oil that meets or exceeds the API service classifications recommended in your owner's manual. You'll see designations like "SN," "SM," or similar. Newer designations generally indicate improved performance.

* Oil type: Conventional oil is the most budget-friendly option. Synthetic blend offers a balance of cost and performance, while full synthetic is the most expensive but provides superior protection and longevity.

In short: Find your owner's manual. If you can't find it, 5W-30 is a reasonable guess, but always check for API certifications and consider your budget and desired performance when choosing between conventional, synthetic blend, or full synthetic oil.