Motor oil for Buick GL6

All oils and lubricants that meet the manufacturer specification for Buick GL6.

Which viscosity does a Buick GL6 need?

We cover 1 engine variants of the Buick GL6. The most commonly approved grades are 5W-30.

Which approvals does Buick require?

Buick publishes no approval of its own: what counts is the viscosity and the ACEA or API class in your owner's manual.

Buick GL6 engine variants

The oil finder covers these engine variants of the Buick GL6: GL6 1.3T 2017–….