So, you’ve heard about Aspen, perhaps your new machine has a little Aspen sticker on the fuel tank? You are probably aware that by using Aspen you are protecting your own health, and you may have heard it will eradicate the problems you have had with stale fuel.Being virtually free from sulphur, benzene, olefins and solvents, Aspen alkylate petrol burns cleaner than regular petrol making it better for operators, machinery and the environment.

Sounds great… How do I start using it?

In new machinery, it’s as simple as filling up with your Aspen fuel. However, if your machine has previously been used with regular petrol, there are a few precautionary steps you can take to ensure undiagnosed issues don’t appear and to give you the best experience of using Aspen. We have compiled a series of blogs which cover these steps and answer the most frequently asked questions. They also include some practical advice to help you switch your equipment and to select the correct fuel.

Click the links for more information on the following topics:

  1. Switching a machine from regular petrol to Aspen (it is not just for new machines).
  2. Switching back to regular petrol – Aspen is compatible with other petrol fuels, no machine adjustments needed.
  3. Mixing 2-stroke oil, Aspen Premixed 2-stroke fuel or Aspen 4 stroke fuel.

2 thoughts on “Switching to Aspen Fuel – A Practical guide

  1. Sirs,

    Interesting! I am using Aspen fuel with five Stihl machines. I look after them and use them in a domestic setting. My small FS 38 Stihl strimmer suddenly started leaking Aspen 2 stroke fuel recently. I took it to a small Stihl and Aspen local agent who have just informed me by telephone that it has a “dried” diaphragm and will require a new carburettor. The part is expensive and instantly makes the machine an economic write off though it otherwise has bags of utility left. They suggested that Aspen is the likely culprit. I need to speak to the proprietor who is away at present to get the full facts. He returns Tuesday 4th Sept.

    I would welcome your feedback

    Kind regards

    Julian Lindley

    1. Has the machine been run on pump fuel prior to the switch onto Aspen?
      If so then the issue is well documented.
      Unfortunately pump petrol will have already caused damage to diaphragm and gaskets due to solvent in pump fuel it masks the damage caused.
      The Aspen flushes the solvent away, highlighting the damage previously caused. If it is just a diaphragm in a carburettor that has gone hard, the carb doesn’t need replacing and will just require rebuilding with a new diaphragm new diaphragms are approximately £10.

Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.