I have been blending my fuel for about 5 years now and I always have problems about this time every year with cold fuel. I was wondering if any one on this forum has ever considered useing a controller to keep the glow plugs on all the time with reduced voltage. I know you could not let them stay on at full voltage, but would the glow plugs last if you had say 6 volts on them? Could be a crazy question, but I am accused of being a half bubble off anyway. Thoughts please.

Jack

A few details about your system always helps narrow/focus the responses.
I am guessing you have a single tank design since you are concerned about cold fuel?

Good options are even a small second tank of diesel to purge at the end of driving, or very very thinned out oil during cold season.

Check out this thread about the commerical Elsbett glowplugs that can now be purchased separately.
Elsbett injectors and glow plugs

They glow extra long before turning your interior light off, indicating you to start, while they actually stay on/warm a little longer through the initial start and few seconds of running the cold fuel sitting in lines between heated filters, tank lines, etc

I am not super mechanical, but I am fairly sure you'd burn out your plugs even at lower voltage with a constant burn. They simply aren't meant to do that. Folks do use them always on to warm oil in different types of filtering set-ups. But you have to replace often, though not very expensive.

Think I wonder about, if you occasionally fill with dino diesel, would this constant glow heat be too much in the chamber for that thin fuel?

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