Seastar HH5271 helm pump fluid??

[TraceF3]

From what I have read the orig. 5605 is a petro. based product. it is now obsolete. The 5606a is a mineral oil based prod.

You do know mineral oil is petroleum based right?

[XstreamVking]

I do know mineral oil is refined further....But, yes from petro.

[Markus]

I do know mineral oil is refined further....But, yes from petro.

do you think the original 5606 spec was based on crude oil?

[David - WI]

X/C® 5606H Aviation Hydraulic Fluid meets the cleanliness requirements for “super clean” hydraulic fluid for use in modern aircraft hydraulic systems.

X/C® 5606A Aviation Hydraulic Fluid is recommended for use in hydraulic systems that do not require a “super clean” fluid.

Both fluids are dyed red for identification and leak detection purposes.

[XstreamVking]

do you think the original 5606 spec was based on crude oil?

No, I thought it is dinosaurs put in a jar. Seriously, wtf marcus? So petty. Ok here it goes....
Mineral oils are produced from refined hydrocarbons obtained from crude oil by distillation. They are applied as
hydrodynamic lubricants and as carriers of additives promoting boundary or solid-film lubrication.

But some people call them "super clean fluid". Thx for the info David WI...

[Markus]

So what do you mean it is based on if not a mineral oil base stock?

[XstreamVking]

Find some citroen oil and shove it buddy....You must be really bored huh? If you want to be an oil expert look it up yourself....

[BUZZIN' DOZEN]

From what I have read the orig. 5605 is a petro. based product. it is now obsolete. The 5606a is a mineral oil based prod. The newer designations H to J now have changed to meet the ultra low temp requirement for the military. The snow plow stuff is the closest to original 5606 you can get I would guess. All the designations would be OK afaik. Each letter higher is a new latest and greatest variant. With mil spec they always want better as the aircraft operating parameters increase. Snowplows not so much....

Well since you poo poo'd me I'll jump in, you better be careful what your recommending, this is from the 5606H info sheet.
" NOTE: Do not use these fluids in hydraulic systems with natural rubber elastomers ".

[XstreamVking]

I thought I was saying the snow plow stuff was the closest? Not meaning to poo poo you buzzin. I use the napa stuff since I go there for a lot of parts. The mil spec changes and you have to read the bottle for every one.

[BUZZIN' DOZEN]

My mistake

[XstreamVking]

Feel free to correct me any time buzzin. I will be the first to admit i'm not an oil espert...There was a thread a while back about this? That's when I quit the sea star snake oil.
Like everyone here, I listen to what everyone else says and then do what I want. Hahaha.....

[Markus]

Find some citroen oil and shove it buddy....You must be really bored huh? If you want to be an oil expert look it up yourself....

That was not particularly polite. However, you have posted much worse things.

I am no oil expert, but I have worked in the industry. I have also owned boat engines and cars, and have learned enough to know what I need to know to make informed decisions.

I encourage you to read up a bit on lubrication. On the other hand, in light of some of your other posts, you have much more important things to read up on.

Believe it or not, but your lack of knowledge isn't as good as someone else's knowledge, and does not deserve to be respected.
__PRESENT

[BenKeith]

Well, it all boils down to the fact, "It's my boat and I can run whatever I dang well please" If one choses to ignore the manufactures recommendations because they fell the know better than the engineers, that designed it, that's totally up to them.

[XstreamVking]

That was not particularly polite. However, you have posted much worse things.

I am no oil expert, but I have worked in the industry. I have also owned boat engines and cars, and have learned enough to know what I need to know to make informed decisions.

I encourage you to read up a bit on lubrication. On the other hand, in light of some of your other posts, you have much more important things to read up on.

Believe it or not, but your lack of knowledge isn't as good as someone else's knowledge, and does not deserve to be respected.
__PRESENT

Dammit man say what you mean. Don't beat around the bush. You don't like me? Oh, well. Feelings mutual....

[TraceF3]

Phillips, Shell, or Royco aviation hydraulic. Under $30/gallon.

You can use these options.

I am retired from the lubricants industry. Lubricants have become more and more complex over the last few decades but this is a fairly basic hydraulic fluid.

Consider that Sea Star isn't making their product, it takes a specific grade of base stock refined to blend with a specific combination of additives. They're buying it from the lowest bidder and the same blend is probably going in lots of other bottles, pails, and drums that aren't labeled Sea Star.