Changing yong heng oil from one type to another?

[madeintheuk]

I haven’t had my yong heng for long, and haven’t used it more than an hour total, but the oil is getting dark, and I’ve been using sythetic husky compressor oil. I can smell the oil when the compressor is running leading me to believe combustion is occurring. I would like to change the oil soon, and swap to the secolube everyone is currently recommending for these units.
My question is, how do I remove all the remnants of the old fluid? and is that necessary? Or should I just do a couple of frequent oil changes till I’m confident all the old oil has been displaced?
Eager to see what others have done.

 

[Rickrick]

Every oil change eventually gets dark. I ran my first oil for 30 mins (about 10 min at a time to fill my ninja tanks) then filled again with the Secolube which turned dark in the slght glass within the first hour of run time.

Brands of oils have been a controversy even back when all car oil was only 30wt.
I went with Secolube because Steven with Avs slugs did some pretty good looking into it. What he showed made sense and matches what I've read from others on both sides of the oil coin.

What little that remains behind after letting it all drain and drip out will be fine to leave in, no need to flush the old oil with new oil (especially this high dollar secolube).

 

[Gerry52]

I always use a little of the new oil to flush mine out although it's kinda getting cost prohibitive to do so. I'm not so much worried about getting the old "color" out but possible metal particles. To each his own. I'm sure, after 2 years, that if I DIDN'T do it everything would be fine.

 

[WorriedMan]

UK,
First, condolences on the Queen's passing, very evident how much she meant to all. Second, I started with Husky Synthetic blend for break-in (one hour) then switched to Husky Full Synthetic Air Compressor Oil. Only fill guns and am fanatic about keeping things cool so no "burned" smells yet, for me. My air station set-up is semi-permanent, on a Rubbermaid shelf, so just propped compressor slightly forward and, using a half cardboard tube, slowly drained warmed break-in oil to container on floor. Plan to use SecoLube-500 at annual oil change and into the future. Break-in oil was cloudy/dark, used it to top off oil level in junk mower, till used up. WM

 

[madeintheuk]

UK,
First, condolences on the Queen's passing, very evident how much she meant to all. Second, I started with Husky Synthetic blend for break-in (one hour) then switched to Husky Full Synthetic Air Compressor Oil. Only fill guns and am fanatic about keeping things cool so no "burned" smells yet, for me. My air station set-up is semi-permanent, on a Rubbermaid shelf, so just propped compressor slightly forward and, using a half cardboard tube, slowly drained warmed break-in oil to container on floor. Plan to use SecoLube-500 at annual oil change and into the future. Break-in oil was cloudy/dark, used it to top off oil level in junk mower, till used up. WM

Thanks,

I think my biggest concern was that The combusting oil would lower the longevity of the compressor by gumming up the piston rings like I’ve seen in break down videos. Seems the new norm is to use secolube that’s designed for the higher pressure compressors. Replacing the oil with something so different worried me of adverse effects on the internals.

 

[WorriedMan]

UK,
As explained to me, some crankcase oil will eventually work its way into the high pressure second stage and lacking a high enough flash point will combust, similar to the function of a diesel engine. This combustion is harmful to the compressor and will likely lead to significant problems. The Husky Full Synthetic Air Compressor Oil has a flash point of 460 degrees F while the SecoLube500 has a flash point of 520 degrees F. Don't think anyone looking for longevity in the Yong Heng should ignore seeking a higher flash point crankcase oil and any debate over what crankcase oil is best, should include flash point information. WM

 

[Oldanornery]

Ordered my first YH today, has anyone used or heard anything about the Amsoil iso 46 20w Compressor oil. I can get that locally and Amsoil used to be a good name.

 

[madeintheuk]

Stay away from iso46.

 

[Oldanornery]

Okay, so I'm looking for a full synthetic with a high Flashpoint, what particular grade / vescosity would you recommend? Or perhaps there's a particular brand that has performed well.

 

[Smitty911]

Okay, so I'm looking for a full synthetic with a high Flashpoint, what particular grade / vescosity would you recommend? Or perhaps there's a particular brand that has performed well.

The Seco seems to be working well. It's listed above.

Smitty

 

[madeintheuk]

Secolube is the concensus. It’s designed for high pressure compressors like these.

 

[Oldanornery]

Thanks Smitty, I'll use that to be safe, was just hoping to buy local is all.

 

[madeintheuk]

I’ve had husky full synthetic compressor oil in mine so far, and I can smell it combusting even with the high flash point of synthetic. Sr olive is higher flashpoint still, and I’ve heard most people not smelling the oil any more while using it. I’ll be swapping to it next oil change also.

 

[Glem.Chally]

I’ve had husky full synthetic compressor oil in mine so far, and I can smell it combusting even with the high flash point of synthetic. Sr olive is higher flashpoint still, and I’ve heard most people not smelling the oil any more while using it. I’ll be swapping to it next oil change also.

It vents the positive crankcase pressure out the fill "cap" thing. Some in the form of vapor, that's what you're smelling. No smell with the royal purple either.

 

[Oldanornery]

Thanks for that, hopefully if I do my part I can get a couple years out of this YH, at least there seems to be parts available.