# Lawnmowers 2 vs 4 stroke?

**URL:** <https://boards.straightdope.com/t/lawnmowers-2-vs-4-stroke/689512>\
**Category:** Factual Questions\
**Created:** [May 28, 2014, 11:06pm UTC](https://boards.straightdope.com/t/lawnmowers-2-vs-4-stroke/689512 "2014-05-28T23:06:53Z")\
**Posts on this page:** 2\
**Page:** 2

<div class="post-metadata">

**Author:** ![Enola\_Straight](https://avatars.discourse-cdn.com/v4/letter/e/dec6dc/32.png) [@Enola\_Straight](https://boards.straightdope.com/u/Enola_Straight)\
**Post date:** [June 1, 2014, 2:32am UTC](https://boards.straightdope.com/t/lawnmowers-2-vs-4-stroke/689512/21 "2014-06-01T02:32:07Z")

</div>

Can you put a catalytic converter on a 2 stroke, or will 2 stroke oil poison a catcon?

---

<div class="post-metadata">

**Author:** ![newme](https://avatars.discourse-cdn.com/v4/letter/n/e0b2c6/32.png) [@newme](https://boards.straightdope.com/u/newme)\
**Post date:** [June 1, 2014, 4:09am UTC](https://boards.straightdope.com/t/lawnmowers-2-vs-4-stroke/689512/22 "2014-06-01T04:09:44Z")

</div>

> [@Enola\_Straight](#):
>
> Can you put a catalytic converter on a 2 stroke, or will 2 stroke oil poison a catcon?

I have a 2 stroke chainsaw with a catalytic converter. Most new chainsaws run on a 50:1 gas to oil mix, unlike the 25:1 or 16:1 smoke blowers of the past.

[Previous page](https://boards.straightdope.com/t/lawnmowers-2-vs-4-stroke/689512.md?page=1)