Nitro question:
 

Can I use 2 cycle engine oil for after run oil in a nitro???

i'm not sure but i do know you can use marvels mystery oil.

I don't see why not. After run oil, in most cases, is nothing special. I am no expert but I think the point of after run oil is to inhibit rust and also it keeps the not burned methanol from drying out and leaving that white chalky residue that can stop up holes, ruin gaskets etc etc...

It may be but just be safe and get a quart of Marvel Mystery oil at WalMart. It should be just what you need. My OS manual even says to use it. However they state a 50/50 mix of MM and Auto Tranny Fluid. I stopped using the mix after it put a geletin orange coating on my head and top of piston. I use MM oil and it does great on it's own.

wd 40 works too

Bad idea, this is an oil meant to be mixed down from being very thick. Putting it in your engine will probably gum it (the engine) up really badly and foul your plug when you try to start it next. I use Marvel oil too but the best stuff is really Yamaha marine fogging oil. It's an after run/storage oil for use in boat engines. It comes in an aerosol can so you can rig some fuel line up with the spray tube and spray it in the carb via the fuel line.

+1 WD-40: Water displacement on the 40th try

So rust is caused by water^^
it lubricates ^^
its flamable ^^

Cool thanx for your help all of you! I think Im gonna buy the smallest thing of oil I can find and use that to rebuild the eng, but I plan to run it almost every day so I dont need to use much.

this stuff is great :)

http://www.rccompound.com/ProductDet...ctCode=GMK0116