2010 Cadillac STS Spark plugs
Depends on your version. Choose yours, or compare them here.
- 3.6L SIDI V6 Engine 0.044 in gap
- 4.6L DOHC V8 Engine 0.050 in gap
0.044in
Gap · 3.6L SIDI V6 Engine
0.050in
Gap · 4.6L DOHC V8 Engine
2010 Cadillac STS Owner's Manual, PDF page 487
1.11 mm (0.044 in)Open the manual at this page ↗Added Oct 17, 2026 · Updated
See where it's printed
Spark plugs (gap) · 3.6L SIDI V6 Engine · PDF page 487
1.11 mm (0.044 in)
Spark plugs (gap) · 4.6L DOHC V8 Engine · PDF page 487
1.27 mm (0.050 in)
2010 Cadillac STS Owner's Manual, PDF page 487
1.11 mm (0.044 in)Open the manual at this page ↗Added Oct 17, 2026 · Updated
See where it's printed
Spark plugs (gap) · 3.6L SIDI V6 Engine · PDF page 487
1.11 mm (0.044 in)
2010 Cadillac STS Owner's Manual, PDF page 487
1.27 mm (0.050 in)Open the manual at this page ↗Added Oct 17, 2026 · Updated
See where it's printed
Spark plugs (gap) · 4.6L DOHC V8 Engine · PDF page 487
1.27 mm (0.050 in)
See every quote (2 values)
All versions
| Applies to | Value | Manual says | Page |
|---|---|---|---|
| 3.6L SIDI V6 Engine | 0.044 ingap | “1.11 mm (0.044 in)” | PDF page 487 ↗ |
| 4.6L DOHC V8 Engine | 0.050 ingap | “1.27 mm (0.050 in)” | PDF page 487 ↗ |
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