Wow, I have done a bazillion Civic oil changes. I pull the plug, swap the filter, wait another 20 minutes or so, replace plug and (sometimes) new warsher, and pour in 4 quarts. I find it really hard to understand how 3.8 quarts could make the dipstick read so high. We have curbside recycling using gallon milk jug containers. The old oil fills 'er up.... Gonna reread you post in case I am missing something. Is your pan intact, did it get smashed or something?