# diesel in a gas engine?

**URL:** https://forums.speedlife.net/t/diesel-in-a-gas-engine/27824
**Category:** NYSpeed Automotive
**Created:** [April 18, 2007, 6:08am UTC](https://forums.speedlife.net/t/diesel-in-a-gas-engine/27824 "2007-04-18T06:08:56Z")
**Posts on this page:** 1
**Showing post:** 15

<div class="post-metadata">

### Author: ![LAFENGAS](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/lafengas/32/7573_2.png) [@LAFENGAS](https://forums.speedlife.net/u/LAFENGAS)
#### Post date: [April 18, 2007, 6:40am UTC](https://forums.speedlife.net/t/diesel-in-a-gas-engine/27824/15 "2007-04-18T06:40:08Z")

</div>

[quote=“Bigairskier1580,post:14,topic:27824"”]

Isn’t diesel a much lower octane though, so wouldn’t it combust extremely easily when a spark and air is provided?

[/quote]

diesel requires very high compression = high heat. sparks don’t ignite diesel, heat does.

---

_[View the full topic](https://forums.speedlife.net/t/diesel-in-a-gas-engine/27824)._