What is the torque on the drain plugs on a Chevy spark?

The drain plugs on a Chevy Spark fall into two main categories: the engine oil drain plug and the transmission pan drain plug. In most Spark models, the engine oil drain plug is tightened to about 25 N·m (18 ft-lbs) with an additional 90-degree turn on many GM small engines; the transmission drain plug torque varies by transmission type (manual vs automatic), typically 25–30 N·m for manuals and 30–35 N·m for automatics. Exact figures depend on the year and engine code, so always verify with the specific manual for your vehicle.

Drain plugs and their typical torque ranges

Below are the two drain plug types you’re most likely to encounter on a Spark, with common torque targets used in GM service literature.

• Engine oil drain plug: tighten to about 25 N·m (18 ft-lbs). Some GM engines require an additional 90-degree turn after reaching the specified torque. Use a copper or crush washer where applicable and replace it if damaged.


• Transmission drain plug: torque depends on the transmission type:
  
  
  
  • Manual transmission: about 25–30 N·m (18–22 ft-lbs).
  
  
  • Automatic transmission: about 30–35 N·m (22–26 ft-lbs).
  
  
  
  

Guidance from these figures is general. Always check the exact torque spec in the owner’s manual or GM service information for your vehicle’s year and engine code to avoid leaks or overtightening.

Notes on performing the torque correctly

When servicing, ensure the drain plug and washer are clean, use the correct washer type (crush washer or gasket as specified), and tighten to the specified torque with a calibrated torque wrench. Recheck after a short engine run if the service manual calls for it.

Why the exact torque matters: Over-tightening can strip threads or damage the oil pan or transmission housing; under-tightening can cause leaks. Following the manufacturer’s torque specs preserves sealing integrity and prevents costly repairs.

Summary: The Chevy Spark’s engine oil drain plug is commonly torqued around 25 N·m (18 ft-lbs) with a possible additional 90-degree turn, while the transmission drain plug torque varies by transmission type—manual about 25–30 N·m and automatic about 30–35 N·m. Always confirm the exact figure for your year/model from the official service data or the owner's manual.

What is the torque spec for the oil drain plug?

The torque specs for an oil drain plug with a large diameter can fall anywhere between 10 and 30 lbs ft. depending on the diameter of the threads; usually very near 20 lbs ft. Overtightening the oil drain plug can cause it to stick to the oil pan, making it extremely difficult to remove.

How tight is an oil drain plug supposed to be?

An oil drain plug should be tightened using a torque wrench to the manufacturer's specification, which is often between 10 and 30 foot-pounds, but if you don't have a torque wrench, a good rule of thumb is to tighten it until it's snug, then give it an additional quarter to half a turn. Avoid overtightening, as this can strip the threads on the oil pan.
 
This video demonstrates how to tighten an oil drain plug correctly: 1mField RowsYouTube · Apr 8, 2023
For specific torque

• Use a torque wrench: The most accurate method is to use a torque wrench and tighten the plug to the specific torque value listed in your vehicle's service manual. 
• Typical torque range: Many drain plugs have a torque specification between 10 and 30 foot-pounds, depending on the vehicle. 
• Pay attention to material: Be extra careful with aluminum oil pans, as they are more easily damaged by over-tightening. 

For a general guide

• Hand-tighten first: Screw the drain plug in by hand until the gasket is flush with the oil pan. 
• Use a wrench: With a wrench, tighten the plug until it feels snug. 
• Add a quarter to a half turn: From the snug position, give it another quarter to half a turn. Do not exceed this amount. 

This video shows the consequences of overtightening a drain plug: 1m1A Auto: Repair Tips & Secrets Only Mechanics KnowYouTube · Jan 31, 2018
What to avoid

• Never over-tighten: Overtightening can strip the threads on the oil pan, which is an expensive repair.
• Avoid just using hand pressure: A drain plug needs to be tight enough to prevent leaks and vibration, so it must be tightened with a wrench, not just hand-tight. 

What is the spark plug torque spec for a 2016 Chevy Cruze?

Spark plug torque specifications are listed below. 2014 - 2016 Cadillac ELR = 25 Nm / 18 lb. ft. 2011 - 2016 Chevrolet Cruze = 25 Nm / 18 lb.

What are spark plugs supposed to be torqued at?

Spark plug torque specs vary by manufacturer and plug type, so it is crucial to consult your vehicle's service manual. A general range for common 14mm spark plugs with a gasket is 15–25 ft-lbs, but this can differ for plugs with tapered seats or different thread sizes. For many modern applications, a common spec is around 18 ft-lbs. Always follow the manufacturer's instructions to prevent damage from over- or under-tightening.
 
This video explains how to torque spark plugs with an example: 1mPhillips VisionYouTube · Jun 29, 2021
General guidelines

• Check your manual: Always refer to your vehicle's service manual for the precise torque specification. 
• Use a torque wrench: A torque wrench is essential for ensuring the correct tightness. 
• Hand-tighten first: Start by hand-tightening the spark plug to avoid cross-threading, then use the torque wrench to finish the job. 
• Proper torque is vital: Too little torque can cause compression loss, while over-tightening can strip the threads or break the plug. 

Examples of torque specifications

• Common 14mm gasket type: 18 ft-lbs is a frequent specification. Other sources suggest a range of 15–25 ft-lbs, depending on the specific plug and cylinder head material. 
• Different sizes and seat types:
  • M14 (cast iron head): 20 N·m (approx. 14.8 ft-lbs) 
  • M14 (aluminum head): 17.5 N·m (approx. 13 ft-lbs) 
  • Tapered seat: Often requires a smaller torque value and a specific turn angle, such as 1/16th of a turn after hand-tightening. 
  • Champion tapered seat: 1/16th of a turn after hand-tightening. 
  • Champion gasket type: ⅜–⅝ of a turn for a new gasket, or ¼ turn for a used gasket. 

You can watch this video to learn how to hand-tighten spark plugs before torquing: 55s603 Mechanic vidsYouTube · Dec 22, 2023