Re: oil use
You can reduce oil consumption by using a proper synthetic oil not a petroleum based one.
Look for PAO or Ester basestocks as these are more thermally stable and less prone to oil "burn off" at high temperatures.
Synthetic oils are designed from pure, uniform synthetic basestocks, they contain no contaminants or unstable molecules which are prone to thermal and oxidative break down.
Because of their uniform molecular structure, synthetic lubricants operate with less internal and external friction than petroleum oils which have the non-uniform molecular structure. The result is better heat control, and less heat means less stress to the lubricant.