SAE30 ND used in mower with oil filter

I Put 20w-50 oil in summer time engines that are known oil burners and engines known hit oil temps in excess of 250f, such as riding mowers, pressure washers.
I might try some 20w50 but I’m slightly concerned that might sap a little bit of the power it barely has which is why I used reclaimed 5w30 synthetic in it
 
I bought a 1965 Mustang w/289 Mustang. I assume run on ND oil. This was maybe 1970. I dumped the oil and filled it with Quaker State detergent 10W30 my Dad had by the case. I believe inside the oil pump was filled with sludge. The detergent oil loosened enough sludge to jam the oil pump. Unknown to me the pencil like metal shaft driving the oil pump from distributor snapped and I ruined the engine and then rebuilt it. Good learning experience for a 17 year old (me).

I probably should have eased in the detergent oil. Like 1/2 or 1 QT to start.

No BITOG to ask back then.

So be careful.
Yes, happened to me. 67 Pontiac Lemans 326. Sears 10w-40. Circa 1984.
 
I read your post yes, long winded yes but I read it. Do whatever you like. Why I keep “new oil” from clearances and store closings around. I sure hope you at least filter this “reclaimed oil” and I’d be careful and also make sure no coolant is in it.
If there's coolant in it my oil then my engine is bad and it's combustion grade oil. Why would I put known contaminated oil in something I wasn't trying to sabotage?
Any clearance oil I've found lately has all been 20wt oils.
My reclaimed ICE grade oil comes from my wife's car and the pickup truck and has to be translucent, that's it. I clean off the drain plug area with my pressure washer and the oil goes into a catch pan I just cleaned with soap and water, allowed to dry.
Oil from unscrewing the oil filter goes into a dirty catch pan for combustion grade oil.
Combustion grade oil is any clearly contaminated oil, suspect contaminated oil, any unfiltered engines used oil, any opaque oil. Such as old gear oil out of diffs and gear boxes, used power steering fluid, used small engine and lawnmower oil, used diesel oil, burned up transmission fluid, ect.
 
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Some pics
Filter is a wix equivalent to a 3614

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If there's coolant in it my oil then my engine is bad and it's combustion grade oil. Why would I put known contaminated oil in something I wasn't trying to sabotage?
Any clearance oil I've found lately has all been 20wt oils.
My reclaimed ICE grade oil comes from my wife's car and the pickup truck and has to be translucent, that's it. I clean off the drain plug area with my pressure washer and the oil goes into a catch pan I just cleaned with soap and water, allowed to dry.
Oil from unscrewing the oil filter goes into a dirty catch pan for combustion grade oil.
Combustion grade oil is any clearly contaminated oil, suspect contaminated oil, any unfiltered engines used oil, any opaque oil. Such as old gear oil out of diffs and gear boxes, used power steering fluid, used small engine and lawnmower oil, used diesel oil, burned up transmission fluid, ect.
I see your logic. Just be careful. I use some of my used oil to start fire pit fires. Keeps the gnats, and skeeters away too
 
Good idea. I may try your reclaimed oil. Found some real fine sieve type cone metal filters.
You don't even really need that. Something like cheese cloth, or a coffee filter, just need to take out the big micron bits that can shatter into hundreds of single digit micron bits.
 
Any slender 3/4-16 filter will fit. I use a fe3600 as long as nothing is in the way.
I bought an ST16 since this engine seems to have enough clearance to accept the wider filter. I would’ve went for a Fram PH8A but I’m not sure if the longer filter would fit. A 16 size filter probably has plenty of media for a low pressure engine like this.
 
Just dumped some diesel into the crankcase to try to break down some of the deposits. Was gonna get only 2qt but wasn’t paying attention to the pump so I got almost 3. Will drain early Thursday morning and post pics
 
Dumped the diesel, light brown hue and still thin so there may not have been many deposits from the ND-30 🤷 put my oversize st16 on and put probably 55oz of ST Full syn 10w30 in and it reads full. New drive belt and it scoots pretty well. Now it’s time to fix the deck!
 
I’m hoping the diesel did good work which it seems to based on the colour. After a few hours of runtime the ST 10w30 is still very clean
 
That's pretty sweet. I run a Super Tech on my Kawasaki powered John Deere... of course I paint it John Deere GREEN and put a sticker on it. I have a reputation to uphold in my neighborhood :)
I might paint the next one red (for racing)
 
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