I started out in a sports car shop. A customer came in with a case of oil and wanted the oil changed on his 1965 XKE Jag 2+. It's a 3L straight 6, not that big of an engine.... but it took all 24 quarts !!It only holds like 1.5 quarts right? People with mowers act like they are filling a big rig Diesel oil sump up with 24 quarts. Change the oil if the dipstick smells like fuel.
slomo