What is the spark plugs of the 2016 Cadillac CT6?

2.0L L4 Engine: 0.75–0.90 mm (0.030–0.035 in) (gap); 3.0L V6 Twin Turbo Engine: 0.65–0.75 mm (0.26–0.030 in) (gap); 3.6L V6 Engine: 0.80–0.90 mm (0.031–0.035 in) (gap). Source: 2016 Cadillac CT6 Owner's Manual.

2016 Cadillac CT6 Spark plugs

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2.0L L4 Engine 0.75–0.90 mm (0.030–0.035 in) gap
3.0L V6 Twin Turbo Engine 0.65–0.75 mm (0.26–0.030 in) gap
3.6L V6 Engine 0.80–0.90 mm (0.031–0.035 in) gap

2016 Cadillac CT6 Owner's Manual, PDF page 362

0.75–0.90 mm (0.030–0.035 in)Open the manual at this page ↗Added Oct 16, 2026 · Updated Oct 18, 2026

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Spark plugs (gap) · 2.0L L4 Engine · PDF page 362
0.75–0.90 mm (0.030–0.035 in)

Spark plugs (gap) · 3.0L V6 Twin Turbo Engine · PDF page 362
0.65–0.75 mm (0.26–0.030 in)

Spark plugs (gap) · 3.6L V6 Engine · PDF page 362
0.80–0.90 mm (0.031–0.035 in)

See every quote (3 values)

All versions

3 values

Applies to	Value	Manual says	Page
2.0L L4 Engine	0.75–0.90 mm (0.030–0.035 in)gap	“0.75–0.90 mm (0.030–0.035 in)”	PDF page 362 ↗
3.0L V6 Twin Turbo Engine	0.65–0.75 mm (0.26–0.030 in)gap	“0.65–0.75 mm (0.26–0.030 in)”	PDF page 362 ↗
3.6L V6 Engine	0.80–0.90 mm (0.031–0.035 in)gap	“0.80–0.90 mm (0.031–0.035 in)”	PDF page 362 ↗

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Original sourcePDF page 362

2016 Cadillac CT6 Owner's Manual

Spark plugs (gap) · 2.0L L4 Engine · PDF page 362
0.75–0.90 mm (0.030–0.035 in)

Spark plugs (gap) · 3.0L V6 Twin Turbo Engine · PDF page 362
0.65–0.75 mm (0.26–0.030 in)

Spark plugs (gap) · 3.6L V6 Engine · PDF page 362
0.80–0.90 mm (0.031–0.035 in)

Open Cadillac's manual at this page ↗

Short lines are shown as printed; open the manual for the full page.