RE: Oil spatter
I'm using DLE20 on my Yak 54 120 from nitro planes. I started off running the motor with Klotz synthetic oil and the ratio is 32:1 as recommended by DLE. I never knew that I should have run 2 gallons with the regular oil then switch it to synthetic oil. As I had been told that it's not gonna hurt the engine though but it might take a little longer to get settled in, where I do not have to tweak LSN and HSN anymore.
I had seen the black oil spatter underneath the cowl and at the leading edge and some on stab. I was told not to worry it's normal and during the course of time it would be dissipated. This is my first gasser and I ain't an expert, I'm a noob at this. Now I've ordered me XYZ 20cc from VVRC and I'm gonna install it on my new Seagull model's MXS-R. I'm going to run Pennzoil air-cooled oil for two gallons then I'd be switching it synthetic fuel.
I think black oil spatter are nothing to worry about as I was told.
Thanks
Mody