I DD my 03 with 238k miles about 25 miles round trip every day. Switching jobs and my new commute will be around 70 miles round trip so I'm thinking about picking up a used ES350 for a commuter. Around 16k for a '14 with 80ish k miles. Should average upper 20s. Would prefer a GS350 but they require premium and only average low 20s, so it wouldn't make as much sense. I get 13 in my LC on 87 octane.