My dad's got the 5 gallon HF unit on his farm - I filled it with diesel 5 years ago and it's never been changed to my knowledge. Still works fine.
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IMHO, no home mechanic/shop is complete without a parts cleaner.
Good luck.
I also have the HF unit. It is filled with mineral spirits and works fine. That sticker about water based cleaners seems to be a CYA tag for them.
If you have a local bulk fuel distributor in your town or nearby, check with them for the mineral spirits. I take a 5 gal can to local bulk dealer and buy it for about $4 a gal. Atwoods and Tractor supply have 5 gal cans for about $35.
Good tip! I've been trying to find cheap mineral spirits for awhile. Cheapest I could find was something like $50/5 gal bucket from paint suppliers. The junk in my Northern Tool unit has been in there for 7 years and needs changing.
the mineral spirits does not evaporate too quick?
seems like there is a controversy about that from the little I read:
water-based detergent solution or hydrocarbon?
I plan to use it to clean bearings, Birfs and the like. Seems like Diesel would do. Cheap and not too flammable. But my cleaner is a big 20 gals and may take quite a bit for the pump to go -although I could put some bricks in there to raise the level. Plus would smell and all. And I would use this only infrequently so storage issues.
What do you use and why?
yes, Diesel struck me as the inexpensive way to go and not too flammable.
I'm guessing that Mineral Spirits would clean better, though. That true?
What about ignition from welding/grinding/plasma cutting sparks or splatter? If I infer correctly, the temperature of the ignition source does not matter, as mineral spirits/diesel/kerosene are not volatile enough on their own to sustain a flame?Diesel, kerosene and mineral spirits (paint thinner) are pretty similar. They are not particularly flamable and none of them will ignite with a match or direct flame because they don't have the vapor pressure necessary. They need a wick to heat the liquid to a volatile state and propagate a flame. If price is the issue, go with diesel; otherwise go with mineral spirits as it stinks less.