Winter fuel additive testing

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Introduction

Some winter fuel additives were tested with biodiesel made from a mix of soy/rape. Drip cup tests were performed to assess viscosity (times are in seconds - smaller times have faster liquid flow and therefore show less viscosity).

This Biodiesel starts to gel at -1°C and at this temp the drip cup test is 23.3 seconds.

Many thanks to K.H for performing this testing.

Results

Ref Additive Dosage Drip cup
-19.5C
Drip cup
-10.0C
Drip cup
-5.5C
Cost per treated litre
1 Petrol 5% 33.5 33.1 33.0 6.00p
2 XC40 0.3% 35.9 34.9 34.1 6.24p
5 Hiberna 0.3% 40.8 34.4 34.2 5.7p
4 Coldflow 350 0.3% 41.4 38.7 34.4 6.87p
7 Diesel 20% 45.0 37.1 33.2 28p
6 Acetone 0.15% 46.2 34.7 34.4 1.05p
3 Synergy 0.3% 54.9 39.0 33.8 6.24p
8 Stanadyne 0.3% Crystals Crystals 34.1 5.53p
9 Control - Solid Solid Solid -

Samples at -19.5°C

-19.5°C

Samples at -10°C

-10°C

Samples at room temperature

Room temp