# Dragging Chains on Oil Tanker Trucks

**URL:** <https://boards.straightdope.com/t/dragging-chains-on-oil-tanker-trucks/88013>\
**Category:** Factual Questions\
**Created:** [October 17, 2001, 5:17pm UTC](https://boards.straightdope.com/t/dragging-chains-on-oil-tanker-trucks/88013 "2001-10-17T17:17:09Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Jinx](https://avatars.discourse-cdn.com/v4/letter/j/c6cbf5/32.png) [@Jinx](https://boards.straightdope.com/u/Jinx)\
**Post date:** [October 17, 2001, 5:17pm UTC](https://boards.straightdope.com/t/dragging-chains-on-oil-tanker-trucks/88013/1 "2001-10-17T17:17:09Z")

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I’ve only seen a few oil tanker trucks (tractor-trailers) dragging chains behind them - as a means for grounding the tank to avoid building up a static charge on the truck.

How else is this done? Or, are the chains towards the front of the truck, under the tractor body?

- Jinx

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**Author:** ![manhattan](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/manhattan/32/7_2.png) [@manhattan](https://boards.straightdope.com/u/manhattan)\
**Post date:** [October 17, 2001, 11:04pm UTC](https://boards.straightdope.com/t/dragging-chains-on-oil-tanker-trucks/88013/2 "2001-10-17T23:04:38Z")

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Since there’s another thread on various chains on various vehicles [here](http://boards.straightdope.com/sdmb/showthread.php?threadid=93502), I’ll close this one and direct members to the other one.