# What does the colonial pipeline actually carry....fuel, yes..but how? **URL:** \ **Category:** Factual Questions\ **Created:** [May 11, 2021, 11:27pm UTC](https://boards.straightdope.com/t/what-does-the-colonial-pipeline-actually-carry-fuel-yes-but-how/941873 "2021-05-11T23:27:42Z")\ **Posts on this page:** 1\ **Showing post:** 12
**Author:** ![md-2000](https://avatars.discourse-cdn.com/v4/letter/m/9d8465/32.png) [@md-2000](https://boards.straightdope.com/u/md-2000)\ **Post date:** [May 12, 2021, 1:12pm UTC](https://boards.straightdope.com/t/what-does-the-colonial-pipeline-actually-carry-fuel-yes-but-how/941873/12 "2021-05-12T13:12:25Z")
> [@TriPolar](#): > > Here in the US heating oil and off-road diesel may both be high sulfur, are dyed red, and untaxed. Low sulfur diesel must be used in on-road cars, is dyed green, and will be taxed as well. But most of the diesel/heating oil here is very low sulfur anyway and largely interchangeable for use except for the tax liability. There also may be some additional additives in heating oil to minimize clogging and other potential problems with burners… Friend of mine grew up years ago on the Canadian prairies, and mentioned that the police checking young men’s automobile fuel tanks for dyed (untaxed) farm-use gasoline was common thing. As was the young punks who would drive up to some farm in the middle of the night and fill up from the farmer’s supply of dyed gasoline. I assume though, adding the dye is something done at the last possible stage of processing/wholesale? --- _[View the full topic](https://boards.straightdope.com/t/what-does-the-colonial-pipeline-actually-carry-fuel-yes-but-how/941873)._