I'm new to this veggie oil stuff.
If im running it in an unmodified 2.5 n/a D what is a sensible mix for this time of year?
Will it be happy starting on 50/50 oil/derv or should i stick to something like 40/60?
And what is the capacity of a series fuel tank? Is it 10gal?/45litres?
I have got 20L of makros finest oil (~70ppl) and was wondering how much real derv i should mix it with?