ORIGINAL: RossW.au
ORIGINAL: MassiveMods
whats the adavantage of mixing fuel by weight as opposed to by volume ?
Mixing accurate by volume requires very accurate mixing containers. Using home digital scales enables you to mix very accurately. eg you want to try using 19% oil instead of 20% oil, using scales and home brew buddy makes it easy, but using containers requires really good containers, ie expensive and hard to get. A good digital kitchen scales are cheep and easy to get.
Yes, but do be aware that 20% oil by weight is a lot less than 20% oil by volume. This is because oil (PAGs and castor) have a s.g. of about 1 and methanol is more like 0.8. As long as you know this and compensate for it, there is no problem mixing by weight.