BSR has carried out a large number of exhaust/emission tests, in accordance with EU norms, on our tuning and within the projects being run for alternative fuels.

Exhaust emission tests, in accordance with EU 2000 EC 98/69 show, for example, that emissions after our Stage 1 + optimisation with 98 octane petrol for VAG 1.8T engines, correspond to the emissions from an un-tuned car and by a good margin, satisfy current norms.

Our tests with E85 show that we can satisfy emissions standards with E85 for those norms that apply to the same car using petrol. At this time, there are no norms for alternative fuels.

For ethyl alcohol it is generally applicable that the HC value becomes raised during the first phase of the test run that includes starting and cold running. This raised HC value is though, principally, non-combusted alcohol.

Much is also debated about the fact that ethyl alcohol emits aldehydes during combustion.
Ethyl alcohol emits acetaldehyde and methanol formaldehyde where the formaldehyde is regarded as the most dangerous.
Petrol emits benzene and all of its elements have a negative effect on our health.

Aldehydes are difficult to measure with current test methods due to the fact that it is difficult to differentiate acetaldehydes from CO² in emission tests. The amounts of acetaldehydes measured therefore also include an unknown amount of CO².

Footnote: Swedish Television's News programme recently made reference to a professor who claimed that ethyl alcohol emits formaldehyde which is a completely incorrect claim. The Television company jhas been informed of this in the hope that a correction will be forthcoming.


Exhaust emission test Volvo 945 / E85 diagram

Exhaust emission test Volvo 945 / E85 results

Exhaust emission test Volvo 945/E85 report (35 pages)

Exhaust emission test Skoda 1.8T / E85

Exhaust emission test BSR Stage 1+ tuning VAG 1.8T engine