Need some advice on a sludge wash

Thanks for the input fellas. I'll give your suggestions a shot especially the part about hitting it with future first, I wouldn't have thought of that. I'm sure the results would have been brutal, and by "brutal" I mean horrible.

As I said before, I am still really new to this and I am trying to increase my skill set with each new build. This is my 4th aircraft to date and each time I try to ramp it up a little bit more. No sense in spending 20+ dollars a kit to keep doing the same thing over and over knowwhatimean

 Jeff

As a preface, let me just say that I've not painted too many engines simply due to the type of airplane/kit I've build, so I'm sure there are others more knowledgeable in 'weathering' an engine properly. 

However, I've never had much success with the sludge wash, so mainly use an oil wash.  The tube of Winton Burnt Umber should be perfect for this (assuming it is an oil based and not an acrylic based paint).  If it's oil, just mix a little into Mineral Spirits or Turpenoid (also available at Michaels).  Since it's an oil wash, if you painted your engine with enamels you should seal it with an acrylic gloss clear, such as Future floor finish; otherwise the oil wash will eat through the enamel paint. 

Hope this helps,

Mark

I thought i might also post a sludge wash question here...

 i've tried to make one using dishwashin liquid, gunze sangyo acrylic and water - what consistency am i looking for?

 whenever i try it, the dishwashing detergent makes the paint particles stick together.  if i add a little, the particles seem to separate from the water, so it's a very weird looking wash, where there are some large particles suspended in clear liquid (the water), and the more detergent i add, the more it turns into a solid lump, almost like blu tak.  i can paint this one, but it's so think you need a lot of paint to make a the wash.

 am i doing this right, or is gunze not the right paint to be using for a sludge wash? 

any tips appreciated.

 cml