Next time you're passing by Walmart or Autozone, just fork over the couple of bucks for a quart of Dextron III ATF. It a lot cheaper than bearings for an engine. I always keep a quart dedicated only to model aircraft use and keep it stored with the rest of my modeling supplies.

If you put the ATF from your transmission into your model engines, would you put the used oil from your car into your lawn mower too? [X(]

Hogflyer