What is the spark plug gap on a 2013 gs350?
The spark plug gap for the 2013 Lexus GS 350 is typically 0.043 inches (1.1 mm). This is the standard setting for the 2GR-FSE 3.5-liter V6 used in this model, and OEM iridium/platinum plugs are generally pre-gapped to this specification.
Understanding this specification helps ensure proper ignition, smooth idle, and efficient fuel use. If you replace the plugs, use a plug that is either pre-gapped to 0.043 inches or one you can reliably set to that gap with a precise feeler gauge. Always verify the exact gap and torque requirements in the official service manual or with a qualified technician, as variations can occur with different plug types or aftermarket parts.
Spark plug gap specification for the 2013 GS 350
Below are the key points about the gap value and typical plug choices for this vehicle.
- Gap: 0.043 inches (1.1 mm).
- Plug types commonly used: iridium or platinum, usually pre-gapped to 0.043 in.
- Replacement plugs: use OEM-equivalent parts that are pre-gapped to 0.043 in; if using un-gapped plugs, set the gap carefully to 0.043 in before installation.
In summary, aim for a 0.043-inch (1.1 mm) gap on the 2013 GS 350, and verify any aftermarket plugs’ gap specifications before installation.
How to check and set the spark plug gap
If you’re replacing the plugs yourself, follow these steps to confirm or adjust the gap to the correct specification.
- Remove the old plug and inspect for wear or damage; ensure the cylinder head area is clean before installing a new spark plug.
- Measure the gap with a precise feeler gauge set to 0.043 inches (1.1 mm).
- If the gap is too wide, gently bend the ground electrode toward the center electrode using a proper spark plug gap tool until the gap reads 0.043 inches; if too narrow, carefully widen it.
- Install with the manufacturer’s recommended torque, and ensure the plug seats properly without cross-threading.
Always perform these steps with the engine cool and follow the plug manufacturer’s guidance. Do not force gaps beyond what the plug is designed to accommodate, especially with iridium or platinum designs that have very tight tolerances.
Summary
For a 2013 GS 350, the standard spark plug gap is 0.043 inches (1.1 mm). Use plugs pre-gapped to this value when possible, and verify compatibility if you choose aftermarket parts. Refer to the official service manual or a Lexus-certified technician for exact specifications, wiring torque, and replacement interval to ensure optimal engine performance.
