Toyota — change oil every 5,000 miles or six months to reach 300,000 miles

The speaker's core claim is that if you want your Toyota to last 300,000 miles or more, oil changes are "the most basic and the most important maintenance to any car." Modern Toyotas are capable of the 10,000 mile oil change interval, but the speaker warns that "most people read that and just go with it" without checking whether they meet the qualifying conditions. Unless you are driving "three, four, five hundred miles a day," you likely do not qualify for 10,000-mile intervals.

The explicit recommendation: change your oil every 5,000 miles or six months. The speaker emphasizes that the time interval is "equally as important" as mileage. The reason given for the six-month limit is operational: "Gasoline engines will seep some fuel into the oil," which motivates more frequent oil changes even if mileage is low.

Practical takeaway: treat the 10,000 mile guideline as conditional. For typical ownership patterns (not sustained very high daily mileage), follow the speaker's concrete rule: oil change at 5,000-mile intervals or every six months to protect engine longevity toward a 300,000-mile goal.