So from everything I have seen, the only way lean-burn seems to help anyone save fuel is by allowing the engine to operate in a more efficient BSFC range. I.e. more RPM's but same output power to cruise at 60km/hr etc.
Which would explain why I'm only seeing a 12% gain, when I have leaned out the Closed Loop mixtures by 20%.
Correct, wrong or not exactly right?
