Hi Glort, maybe a silly question, but at what point do blend in the ULP, during the drying/filtering stage, or after you have decanted into storage drums? Also, does the blend stay mixed, or does it separate out with standing?
You could do it either way. Myself, I add the ULP when I fill the tank. I used to pour the ULP into the fuel drums after I poured a bit off and shook them before putting it in the Vehicle.
Now I tend to throw the ULP in the tank then add the oil. I did some mixing tests and pretty much any agitation mixes them together. People go on like it's trying to mix oil and water but it's pretty much the opposite. They mix together at any opportunity. My reasoning is by adding the ULP first, the inrush of the oil causes it to mix as it goes. Been doing it that way a couple of years now and yet to have a problem so must be OK.
The other main reason I blend when I fill the tank is because I can blend to the temps at the time. IF cooler weather is predicted I can up the ULP. If it's predicted to be hot I can back it off and if I know I'm going to be doing a lot of driving like going up the country, I may not add any ULP at all because once the thing is going, it's going to be hot till most of the tank is used up. Also on the vehicles I have had, the return fuel warms up what is in teh tank after a while anyway as does I believe hot air from the radiator passing under the vehicle as well as the exhaust.
Another reason I blend when filling the vehicle is because THE ULP will expand and contract more than the oil meaning you have popping drums and Flammable vapor in them. I'm far from a safety sissy but as I store a LOT of this stuff around the place, I'm much more happy with something that's going to put out a campfire if you pump enough on it rather than something that's going cause it to flare.
Easy to put a 25L drum of petrol somewhere it can't do any harm than a 200L drum of mix.
And the other thing..... I use oil in different engines and forever tweak the blends so I prefer to do that at the time so I don't forget what it was or I may have to add ULP or oil anyway to get the ratio I want.
All that said, I have read of people that pre mix their oil before they filter it. They say it makes the rubbish and water drop out easier which makes for easier filtering. They pump off the top of the drum where the oil is cleaner and drier and then put the last 20-40L into the next batch and let that settle out. The idea of Filtering ULP laced oil does not appeal to me.
As I dry my oil, the ULP would be driven off before the water and I'd loose it's benefits... not to mention making the place smell like a refinery which is sure to go down well with neighbors and FAR more importantly, The Mrs. NOT!! 2ndly, I couldn't test for water initially to get an idea of how wet it is.
A lot of people ask about separation, like every thing else I have tested that too and no, it NEVER separates out. I had one test going for well over 2 years. Just put the stuff there in a jar, kept an eye on it for a while and there it sat. And sat and sat Until I accidently knocked the jar off the shelf...... Never changed one bit.
I love the idea of simply washing the alcohol out of ULP! Tempted to do that on the fuel I feed my Jag road car (4 litre supercharged)... the only thing I'd wonder is, would that wash out any of the other additives they put in there?
I have heard that a lot too.
I looked into the additives they put in fuel ( here at least) and everything I found was oil based and would not mix with water. I have no reason to believe anything but the Alcohol would be removed in the water.
The washed fuel i make goes in my mowers and my Harley and I have never had any problems.
If one was worried about that and wanted to use washed fuel, you could always put it one of the endless additives in a bottle. I don't really believe in them but If they make people feel better...
A tip on additives/ Flushes......
Read the MSDS. I bought a drum off a guy that used to make his own additive brand and that was what he put in everything. I looked at all the products I could find on the Net including the main ones and EVERY single one I have read for fuel or oil treatment all contains one major Component..... Naptha. Shellite. Coleman gas. White spirit..... all the same thing.
I can buy a litre Bottle at the hardware chain for $9. Miles cheaper than buying it at 50-80% concentration in a 250Ml bottle for $14 or whatever. I buy a bottle, fill the tank and throw in 500ml-1L .
The other main component in these additives is usually another hydrocarbon..... Kero, Diesel and I suspect Transmission fluid under another name.
I added a bottle of Naptha once on a newly acquired truck and nearly shipped myself. It was blowing this noticeable blue white haze and made the engine looked like something was majorly wrong. That went away about 3/4 the way through the tank and I could see it thinning the further I drove which was a country trip. Must have been cleaning something out of the engine because it wasn't doing it before and it cleared up on the same tank. I suspect it could have been something to do with the residue in the manifold from the PCV or EGR. Far more trouble than it's worth on a diesel those. Stuffs up modern engines regularly I disconnect it or block it off as soon as I get a vehicle or engine that has it.
I put some naphtha in the tank every so often when I remember it to help prevent any possible gumming in the IP. You can also run it straight into the engine as a more concentrated flush. Naptha is the main additive in those sort of fuel system cleaners as well. I run the engine on it direct about every 6 Months and shut down after about half the bottle is used and let it sit for as long as I can. You see the bottle change from water clear to a darker colour. Black if it's a new vehicle to me and been running diesel.
In honesty, I find no difference to the way the vehicle goes after the treatment but then again, I probably don't want to as that would mean something was not right. It's a preventative and if it takes away any gumming or whatever before it causes a problem, That's the aim of the game.