Which fuel should you be using in your machine?

OK, so you’ve realised that you could benefit from switching to Aspen fuel. Excellent! But there are all these different options, which one should you choose?

The reason this question is necessary is quite simple: different engines need different kinds of fuel. Aspen’s two main products are called Aspen 2 and Aspen 4. Aspen 2 is generally used in two-stroke engines, and Aspen 4 in four-stroke engines. Seems logical, doesn’t it?

There are a number of other important reasons these fuels shouldn’t be mixed at random. One such reason is that Aspen 2 features two per cent fully synthetic engine oil content. Most two-stroke engines are designed to run on fuel in which a few per cent of the total volume is made up of oil, to act as a lubricant. However, in four-stroke engines, the lubricant for the engine usually comes from a separate oil sump. If you’re not sure whether your engine is a two-stroke or four-stroke model, check whether there’s a separate oil sump or dipstick. If there is, you have a four-stroke engine, and so should use Aspen 4.

There are exceptions to every rule

These kinds of rules of thumb are always a handy resource, however, every rule has its exceptions, and so does this. That is to say, there are two-stroke engines with a separate oil tank and for these Aspen 4 must be used.

It is important that you find out your engine type before filling your tank. For example, if you were to have a two-stroke engine without a separate oil tank, and were to run it without mixing in any oils, there would be no lubricant in the crankcase. This will cause the engine to cut out.


Other products

In addition to Aspen 2 and Aspen 4, we also have a number of other products in the Aspen range.

Aspen D is a diesel fuel in which 100% of the hydrocarbon content is from renewable sources. This has been developed especially for users who want to show consideration for people, machines and the environment. Aspen D can be stored for three to four times longer than standard Swedish or European diesel. Furthermore, it is guaranteed RME-free.

All of these factors work together to provide heightened operating safety and to reduce the risk of clogged filters and injectors, in turn reducing the risk of engine breakdowns. Aspen D is manufactured primarily for small diesel engines with simple or no emission control systems. These can include ground vibrators, mini excavators, generators, compressors, construction lifts, lawnmowers, tool carriers, forklift trucks, hot water cleaners and diesel heaters.

Aspen+ is designed for those looking for maximum performance. It can be used in cars, motorbikes, go-karts and boats. Even quality and density allow for engine fine-tuning.

Aspen+ can endure long-term storage and is virtually free of benzene and other aromatics.

If you’re after the very best and want to be assured that you’re getting maximum performance from your engine, check out Aspen R. We have selected the best components available to improve the technical properties of your engine as much as possible. A high combustion speed helps the fuel release its energy at just the right moment, producing higher power in return.

Aspen R has RON 102/MON 90, the highest octane rating possible under the regulations of the international motorsports organisation FIA.

These machines usually run on Aspen 2

  • Chain saws
  • Clearing saws
  • Cut-off machines
  • Hedge trimmers

Please note the word ‘usually’ in the title – there are generally exceptions in all categories.

These machines usually run on Aspen 4

  • Outboards
  • Lawnmowers
  • Rotary cultivators
  • Snow blowers

Please note the word ‘usually’ in the title – there are generally exceptions in all categories.