Frequently asked questions

1. Can I use Aspen 2-stroke oil in outboard engines?

Aspen 2-stroke oil is designed to meet the tough requirements of air-cooled high performance engines. Outboard motors that are directly water-cooled are not as demanding on temperature durability. There are outboard oils that should be used in water-cooled outboard engines.

2. What difference is there between Aspen alkyate petrol and normal petrol?

There is a Swedish standard for alkylate petrol and we require everyone who is marketing alkylate fuel to follow this. Aspen’s own standards are set a little higher than this on many fronts, both concerning pollutants, such as sulphur and benzene and concerning qualities that affect the operation of the engine and its life expectancy. Aspen 2 also contains Aspen 2-stroke oil, which is a fully synthetic two-stroke oil of the highest quality.

3. When should Aspen+ or Aspen R be used?

When competing internationally, Aspen R should be used because it meets the international standards laid down by the FIA, FIM and FIK racing associations. Aspen R often gives a somewhat higher performance than Aspen+.

4. What should I use if my 2-stroke engine has separate lubrication, i.e separate tanks?

Engines requiring separate lubrication should use Aspen 4 if the best environmental qualities are to be attained. If a 98 octane petrol is required then Aspen+ is the environmentally best alternative.

5. What fuel should be chosen for motor bikes, gocarts, snowmobiles etc?

Aspen 2 is recommended for all non-separately lubricated 2-stroke engines, because Aspen 2 has the best environmental qualities. Aspen 4 and Aspen 2-stroke oil is recommended for separately lubricated 2-stroke engines. Larger 2-stroke and high performance engines with a high-octane requirement are recommended to use Aspen+. Aspen R is recommended for both 2-stroke and 4-stroke engines for racing purposes, where maximum performance and good environmental qualities are paramount. Aspen R meets the international requirements set by the FIA, FIM and FIK racing associations.

6. What petrol should be used for outboard engines, Aspen 4 or Aspen+?

Both are excellent choices. Aspen 4 is somewhat better for smaller outboard motors while Aspen+ has a higher octane level and is designed for high performance engines and engines with a need for higher octane levels.

7. How long can Aspen alkylate petrol be stored in petrol cans without quality deterioration?

Aspen alkylate petol can usually withstand many years in storage without any quality deterioration. Life span does reduce though if you neglect to replace the lid, allow the can to stand in direct sunlight, or if in any other way expose the can to extreme temperatures.

8. Why should I use Aspen R and not ordinary commercial petrols?

Aspen R has better environmental qualities than commercial petrols and can also be stored for longer. The quality of commercial petrol varies, while Aspen R remains constant. It also has a higher-octane level (RON/MON 102/90 against 95/85 or 98/87). Aspen often gives better performance.

9. Can Aspen petrol be mixed with normal petrol?

Yes of course, but quality diminishes more with normal petrol.