I've had the groove for over a few years now, with no results. But I must say it's not Ron's fault. We've been emailing back and forth all along to find the problem.
The PCV intake is plugged. I reset the ECU… twice. I removed, inspected, and reinstalled the Throttle Body twice. The second time, I helped the new gasket with a light coating of black silicone sealant for good measure. I even changed the air filter and spark plugs to high performance units.
But for whatever reason, there's never been any effect on my mileage. That Honda computer is very stubborn!!... I'm hoping someone in Gadgetman-land will have a bright idea…
And yes, I'm still smiling to strangers… Mario.