Laten we eerlijk zijn, elk van ons in de watersport heeft te oude dieselolie in de tank.
De B7 dieselolie komt steriel uit de raffinaderij
en wat er dan verder mee gebeurt, onttrekt zich aan onze waarneming.
Bij pompstations aan de weg is de doorloopsnelheid hoog en
bij de beroepsvaart ook.
Bij ons watersporters is de doorloopsnelheid in onze tanks laag.
We houden vaak ook de tanks gevuld in de winter i.v.m. condensatie en water in de tank.
Zo is het nou eenmaal.
En dan nog gaat het vaak goed en zijn er geen problemen.
Hier zijn 2 citaten van Yanmar en Cat over B7 diesel:
Yanmar:
7. Please check and confirm the quality of B7 Diesel and other fuel tanks before you will start to use it.
Please keep daily maintenance during the use of B7 Diesel and do not forget to regularly flush the fuel system and fuel storage containers.
You may only use B7 Diesel at least within two (2) months from the time of filling the tank or three (3) months from the time of production by the said fuel suppliers, whichever comes first.
Yanmar does not warrant and is not responsible for any problems caused by the use of the deteriorated B7 Diesel or by the use of the B7 Diesel which do not comply with the above relevant regulations.
Bron:
https://www.yanmar.com/eu/agri/wp-conte ... hedule.pdf
Pagina: 13-4
Caterpillar:
The gums and resins that occur in diesel fuel
are the result of dissolved oxidation products in the fuel that do not evaporate easily.
The products that are dissolved in the fuel also do not burn cleanly.
Excessive gum in the fuel will coat the inside of fuel lines, pumps, and injectors.
Excessive gum will also interfere with the close tolerances of the moving parts of the fuel systems.
Gum and resin in the fuel will also cause the filter to plug rapidly.
Oxidation of the fuel will occur and the formation of additional gums and resins will occur during fuel storage.
The storage time for fuel must be minimized in order to help reduce the formation of gumS and resins.
Note: Even when all fuel storage maintenance practices are followed,
Cat recommends a maximum of 1 year from production for distillate diesel fuel storage,
and a maximum of 6 months from production for biodiesel and blended biodiesel storage.
Storage life for biodiesel and biodiesel blends that are greater than B20
may be much shorter than 6 months.
Bron:
https://caterpillar.scene7.com/is/conte ... /C10419422
Pagina 45.
Hieruit kun je de conclusie trekken dat er echt wel iets aan de hand is met de B7 diesel en
dat hoe we er mee omgingen vóór 2009 toen FAME bio-component nog niet werd toegevoegd,
nu met andere ogen bekeken moet worden.