Best Radiator Flush

[divemaster5734]

Due to being impatient and reusing a gasket, I contaminated the water with oil.
I believe I can flush the block easily enough, but the new radiator has some well dispersed oil.
There's both chemicals and tools that use both air and house water that I've seen are readily available.
I planned on pulling the radiator out and flushing separately.
Being a "new" thing to me, I was wondering what you guys have found to be effective.
I tried a straight distilled water fill and drain after the initial drain, but can still tiny oil droplets laying throughout the new radiator coils just looking through the fill hole.
So it's probably pretty bad.
The closest radiator shop is fifty miles, and hoping to save some time.
Thanks

 

[Clb]

Best degreaser of your choice.
Place rad on flat surface hose spigot up, leave cap on, petcock closed, pump thru one side, collect from the other.
Repeating till your happy.
Alternatively you can jack shop air into the feed side to help scrub...

 

[hce]

If it just oil a Cascade dishwasher detergent or equivalent.

 

[IDIBRONCO]

If it just oil a Cascade dishwasher detergent or equivalent.

I've done that several times after I changed out an internally leaking oil cooler.

 

[divemaster5734]

I've done that several times after I changed out an internally leaking oil cooler.

How did you determine the oil cooler developed an internal leak?
Was that a result of a manufacturing flaw, a blown gasket, or worn out cooler?
When I swapped the engine I replaced the cooler, but took it to a diesel shop to compress the filter onto the ends as I had never done that, and was apprehensive of screwing up the O rings.

 

[IDIBRONCO]

Leaking o rings filled the cooling system with oil. That's what the trucks came in for.