What is the torque spec on oil drain plug of a duramax diesel engine?

There's no single torque specification for a Duramax oil drain plug. The correct torque value depends on the specific year, model, and engine size of the Duramax. The plug itself might also have different specifications.

You absolutely must consult your vehicle's owner's manual. This manual will provide the precise torque specification for your specific Duramax engine's oil drain plug. Using the wrong torque can lead to a stripped drain plug or a leak.

Failing to find it in your owner's manual, you can try:

* GM's website: Search for your specific vehicle's service manual.

* A reputable online repair manual: Sites like Chilton or Haynes often have this information.

* A qualified mechanic: This is the safest option if you can't find the specification.

Attempting to tighten the drain plug without the correct torque specification is risky and could cause damage.